>>> [!note] Migrated issue <!-- Drupal.org comment --> <!-- Migrated from issue #3029503. --> Reported by: [cybercraft2003](https://www.drupal.org/user/3425247) >>> <p>Hello guys,</p> <p>I try to update Devel from 1.x to 2.0 with composer in a Drupal 8.6.7 composer based installation but Composer output a dependency conflict with Symfony/var-dumper package.</p> <p>Here i my c.json :</p> <pre>{<br>&nbsp;&nbsp;&nbsp; "name": "drupal-composer/drupal-project",<br>&nbsp;&nbsp;&nbsp; "description": "Project template for Drupal 8 projects with composer",<br>&nbsp;&nbsp;&nbsp; "type": "project",<br>&nbsp;&nbsp;&nbsp; "license": "GPL-2.0-or-later",<br>&nbsp;&nbsp;&nbsp; "authors": [<br>&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp; {<br>&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp; "name": "",<br>&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp; "role": ""<br>&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp; }<br>&nbsp;&nbsp;&nbsp; ],<br>&nbsp;&nbsp;&nbsp; "repositories": {<br>&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp; "0": {<br>&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp; "type": "composer",<br>&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp; "url": "https://packages.drupal.org/8"<br>&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp; },<br>&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp; "d3": {<br>&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp; "type": "package",<br>&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp; "package": {<br>&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp; "name": "d3/d3",<br>&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp; "version": "v3.5.17",<br>&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp; "type": "drupal-library",<br>&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp; "dist": {<br>&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp; "url": "https://github.com/d3/d3/archive/v3.5.17.zip",<br>&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp; "type": "zip"<br>&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp; }<br>&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp; }<br>&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp; },<br>&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp; "highlightjs": {<br>&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp; "type": "package",<br>&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp; "package": {<br>&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp; "name": "components/highlightjs",<br>&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp; "version": "9.7.0",<br>&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp; "type": "drupal-library",<br>&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp; "dist": {<br>&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp; "url": "https://github.com/components/highlightjs/archive/9.7.0.zip",<br>&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp; "type": "zip"<br>&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp; }<br>&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp; }<br>&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp; }<br>&nbsp;&nbsp;&nbsp; },<br>&nbsp;&nbsp;&nbsp; "require": {<br>&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp; "components/highlightjs": "9.7.*",<br>&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp; "composer/installers": "^1.2",<br>&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp; "cweagans/composer-patches": "^1.6.5",<br>&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp; "d3/d3": "3.5.*",<br>&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp; "drupal-composer/drupal-scaffold": "^2.5",<br>&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp; "drupal/addtoany": "^1.10",<br>&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp; "drupal/admin_toolbar": "^1.25",<br>&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp; "drupal/adminimal_admin_toolbar": "^1.8",<br>&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp; "drupal/adminimal_theme": "^1.3",<br>&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp; "drupal/antibot": "^1.2",<br>&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp; "drupal/better_exposed_filters": "^3.0@alpha",<br>&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp; "drupal/chosen": "^2.6",<br>&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp; "drupal/commerce": "^2.11",<br>&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp; "drupal/console": "^1.0.2",<br>&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp; "drupal/core": "^8.6.0",<br>&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp; "drupal/ctools": "^3.0",<br>&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp; "drupal/devel": "^1.2",<br>&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp; "drupal/dropzonejs": "^2.0@alpha",<br>&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp; "drupal/editor_advanced_link": "^1.4",<br>&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp; "drupal/entity_browser": "^2",<br>&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp; "drupal/entity_clone": "^1.0@beta",<br>&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp; "drupal/entity_usage": "^2.0@alpha",<br>&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp; "drupal/field_group": "^3",<br>&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp; "drupal/focal_point": "^1.0@beta",<br>&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp; "drupal/geocoder": "^2.0",<br>&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp; "drupal/geolocation": "^2",<br>&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp; "drupal/honeypot": "^1.29",<br>&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp; "drupal/image_widget_crop": "^2.2",<br>&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp; "drupal/mailsystem": "^4.1",<br>&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp; "drupal/media_entity_browser": "^2",<br>&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp; "drupal/menu_block": "^1.5",<br>&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp; "drupal/menu_breadcrumb": "^1.7",<br>&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp; "drupal/metatag": "^1.7",<br>&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp; "drupal/office_hours": "^1.1",<br>&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp; "drupal/paragraphs": "^1.5",<br>&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp; "drupal/pathauto": "^1.3",<br>&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp; "drupal/redis": "^1.1",<br>&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp; "drupal/search_api_solr": "~3",<br>&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp; "drupal/swiftmailer": "^1.0@beta",<br>&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp; "drupal/twig_tweak": "^2.1",<br>&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp; "drupal/video": "^1.2",<br>&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp; "drupal/views_exposed_filter_blocks": "^1.0",<br>&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp; "drupal/webform_node_element": "^1.1",<br>&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp; "drush/drush": "^9.5",<br>&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp; "enyo/dropzone": "^5.5",<br>&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp; "vlucas/phpdotenv": "^2.4",<br>&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp; "webflo/drupal-finder": "^1.0.0",<br>&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp; "webmozart/path-util": "^2.3"<br>&nbsp;&nbsp;&nbsp; },<br>&nbsp;&nbsp;&nbsp; "require-dev": {<br>&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp; "webflo/drupal-core-require-dev": "^8.6.0"<br>&nbsp;&nbsp;&nbsp; },<br>&nbsp;&nbsp;&nbsp; "conflict": {<br>&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp; "drupal/drupal": "*"<br>&nbsp;&nbsp;&nbsp; },<br>&nbsp;&nbsp;&nbsp; "minimum-stability": "dev",<br>&nbsp;&nbsp;&nbsp; "prefer-stable": true,<br>&nbsp;&nbsp;&nbsp; "config": {<br>&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp; "sort-packages": true<br>&nbsp;&nbsp;&nbsp; },<br>&nbsp;&nbsp;&nbsp; "autoload": {<br>&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp; "classmap": [<br>&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp; "scripts/composer/ScriptHandler.php"<br>&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp; ],<br>&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp; "files": [<br>&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp; "load.environment.php"<br>&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp; ]<br>&nbsp;&nbsp;&nbsp; },<br>&nbsp;&nbsp;&nbsp; "scripts": {<br>&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp; "pre-install-cmd": [<br>&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp; "DrupalProject\\composer\\ScriptHandler::checkComposerVersion"<br>&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp; ],<br>&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp; "pre-update-cmd": [<br>&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp; "DrupalProject\\composer\\ScriptHandler::checkComposerVersion"<br>&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp; ],<br>&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp; "post-install-cmd": [<br>&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp; "DrupalProject\\composer\\ScriptHandler::createRequiredFiles"<br>&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp; ],<br>&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp; "post-update-cmd": [<br>&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp; "DrupalProject\\composer\\ScriptHandler::createRequiredFiles"<br>&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp; ]<br>&nbsp;&nbsp;&nbsp; },<br>&nbsp;&nbsp;&nbsp; "extra": {<br>&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp; "patchLevel": {<br>&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp; "drupal/core": "-p2"<br>&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp; },<br>&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp; "installer-paths": {<br>&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp; "web/core": [<br>&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp; "type:drupal-core"<br>&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp; ],<br>&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp; "web/libraries/{$name}": [<br>&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp; "type:drupal-library"<br>&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp; ],<br>&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp; "web/modules/contrib/{$name}": [<br>&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp; "type:drupal-module"<br>&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp; ],<br>&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp; "web/profiles/contrib/{$name}": [<br>&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp; "type:drupal-profile"<br>&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp; ],<br>&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp; "web/themes/contrib/{$name}": [<br>&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp; "type:drupal-theme"<br>&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp; ],<br>&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp; "drush/Commands/{$name}": [<br>&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp; "type:drupal-drush"<br>&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp; ]<br>&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp; },<br>&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp; "drupal-scaffold": {<br>&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp; "initial": {<br>&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp; ".editorconfig": "../.editorconfig",<br>&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp; ".gitattributes": "../.gitattributes"<br>&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp; }<br>&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp; }<br>&nbsp;&nbsp;&nbsp; }<br>}</pre><p>And the output from composer (Sorry for verbose output...) :</p> <pre>$&gt; composer require drupal/devel:^2.0<br><br>./composer.json has been updated<br>&gt; DrupalProject\composer\ScriptHandler::checkComposerVersion<br>Loading composer repositories with package information<br>Updating dependencies (including require-dev)<br>Your requirements could not be resolved to an installable set of packages.<br><br>&nbsp; Problem 1<br>&nbsp;&nbsp;&nbsp; - Conclusion: don't install drupal/devel 2.0.0<br>&nbsp;&nbsp;&nbsp; - Conclusion: remove symfony/http-kernel v3.4.21<br>&nbsp;&nbsp;&nbsp; - Conclusion: don't install symfony/http-kernel v3.4.21<br>&nbsp;&nbsp;&nbsp; - symfony/var-dumper 2.7.x-dev conflicts with symfony/http-kernel[v3.4.21].<br>&nbsp;&nbsp;&nbsp; - symfony/var-dumper 2.8.x-dev conflicts with symfony/http-kernel[v3.4.21].<br>&nbsp;&nbsp;&nbsp; - symfony/var-dumper 3.0.x-dev conflicts with symfony/http-kernel[v3.4.21].<br>&nbsp;&nbsp;&nbsp; - symfony/var-dumper 3.1.x-dev conflicts with symfony/http-kernel[v3.4.21].<br>&nbsp;&nbsp;&nbsp; - symfony/var-dumper 3.2.x-dev conflicts with symfony/http-kernel[v3.4.21].<br>&nbsp;&nbsp;&nbsp; - symfony/var-dumper v2.7.0 conflicts with symfony/http-kernel[v3.4.21].<br>&nbsp;&nbsp;&nbsp; - symfony/var-dumper v2.7.0-BETA1 conflicts with symfony/http-kernel[v3.4.21].<br>&nbsp;&nbsp;&nbsp; - symfony/var-dumper v2.7.0-BETA2 conflicts with symfony/http-kernel[v3.4.21].<br>&nbsp;&nbsp;&nbsp; - symfony/var-dumper v2.7.1 conflicts with symfony/http-kernel[v3.4.21].<br>&nbsp;&nbsp;&nbsp; - symfony/var-dumper v2.7.10 conflicts with symfony/http-kernel[v3.4.21].<br>&nbsp;&nbsp;&nbsp; - symfony/var-dumper v2.7.11 conflicts with symfony/http-kernel[v3.4.21].<br>&nbsp;&nbsp;&nbsp; - symfony/var-dumper v2.7.12 conflicts with symfony/http-kernel[v3.4.21].<br>&nbsp;&nbsp;&nbsp; - symfony/var-dumper v2.7.13 conflicts with symfony/http-kernel[v3.4.21].<br>&nbsp;&nbsp;&nbsp; - symfony/var-dumper v2.7.14 conflicts with symfony/http-kernel[v3.4.21].<br>&nbsp;&nbsp;&nbsp; - symfony/var-dumper v2.7.15 conflicts with symfony/http-kernel[v3.4.21].<br>&nbsp;&nbsp;&nbsp; - symfony/var-dumper v2.7.16 conflicts with symfony/http-kernel[v3.4.21].<br>&nbsp;&nbsp;&nbsp; - symfony/var-dumper v2.7.17 conflicts with symfony/http-kernel[v3.4.21].<br>&nbsp;&nbsp;&nbsp; - symfony/var-dumper v2.7.18 conflicts with symfony/http-kernel[v3.4.21].<br>&nbsp;&nbsp;&nbsp; - symfony/var-dumper v2.7.19 conflicts with symfony/http-kernel[v3.4.21].<br>&nbsp;&nbsp;&nbsp; - symfony/var-dumper v2.7.2 conflicts with symfony/http-kernel[v3.4.21].<br>&nbsp;&nbsp;&nbsp; - symfony/var-dumper v2.7.20 conflicts with symfony/http-kernel[v3.4.21].<br>&nbsp;&nbsp;&nbsp; - symfony/var-dumper v2.7.21 conflicts with symfony/http-kernel[v3.4.21].<br>&nbsp;&nbsp;&nbsp; - symfony/var-dumper v2.7.22 conflicts with symfony/http-kernel[v3.4.21].<br>&nbsp;&nbsp;&nbsp; - symfony/var-dumper v2.7.23 conflicts with symfony/http-kernel[v3.4.21].<br>&nbsp;&nbsp;&nbsp; - symfony/var-dumper v2.7.24 conflicts with symfony/http-kernel[v3.4.21].<br>&nbsp;&nbsp;&nbsp; - symfony/var-dumper v2.7.25 conflicts with symfony/http-kernel[v3.4.21].<br>&nbsp;&nbsp;&nbsp; - symfony/var-dumper v2.7.26 conflicts with symfony/http-kernel[v3.4.21].<br>&nbsp;&nbsp;&nbsp; - symfony/var-dumper v2.7.27 conflicts with symfony/http-kernel[v3.4.21].<br>&nbsp;&nbsp;&nbsp; - symfony/var-dumper v2.7.28 conflicts with symfony/http-kernel[v3.4.21].<br>&nbsp;&nbsp;&nbsp; - symfony/var-dumper v2.7.29 conflicts with symfony/http-kernel[v3.4.21].<br>&nbsp;&nbsp;&nbsp; - symfony/var-dumper v2.7.3 conflicts with symfony/http-kernel[v3.4.21].<br>&nbsp;&nbsp;&nbsp; - symfony/var-dumper v2.7.30 conflicts with symfony/http-kernel[v3.4.21].<br>&nbsp;&nbsp;&nbsp; - symfony/var-dumper v2.7.31 conflicts with symfony/http-kernel[v3.4.21].<br>&nbsp;&nbsp;&nbsp; - symfony/var-dumper v2.7.32 conflicts with symfony/http-kernel[v3.4.21].<br>&nbsp;&nbsp;&nbsp; - symfony/var-dumper v2.7.33 conflicts with symfony/http-kernel[v3.4.21].<br>&nbsp;&nbsp;&nbsp; - symfony/var-dumper v2.7.34 conflicts with symfony/http-kernel[v3.4.21].<br>&nbsp;&nbsp;&nbsp; - symfony/var-dumper v2.7.35 conflicts with symfony/http-kernel[v3.4.21].<br>&nbsp;&nbsp;&nbsp; - symfony/var-dumper v2.7.36 conflicts with symfony/http-kernel[v3.4.21].<br>&nbsp;&nbsp;&nbsp; - symfony/var-dumper v2.7.37 conflicts with symfony/http-kernel[v3.4.21].<br>&nbsp;&nbsp;&nbsp; - symfony/var-dumper v2.7.38 conflicts with symfony/http-kernel[v3.4.21].<br>&nbsp;&nbsp;&nbsp; - symfony/var-dumper v2.7.39 conflicts with symfony/http-kernel[v3.4.21].<br>&nbsp;&nbsp;&nbsp; - symfony/var-dumper v2.7.4 conflicts with symfony/http-kernel[v3.4.21].<br>&nbsp;&nbsp;&nbsp; - symfony/var-dumper v2.7.40 conflicts with symfony/http-kernel[v3.4.21].<br>&nbsp;&nbsp;&nbsp; - symfony/var-dumper v2.7.41 conflicts with symfony/http-kernel[v3.4.21].<br>&nbsp;&nbsp;&nbsp; - symfony/var-dumper v2.7.42 conflicts with symfony/http-kernel[v3.4.21].<br>&nbsp;&nbsp;&nbsp; - symfony/var-dumper v2.7.43 conflicts with symfony/http-kernel[v3.4.21].<br>&nbsp;&nbsp;&nbsp; - symfony/var-dumper v2.7.44 conflicts with symfony/http-kernel[v3.4.21].<br>&nbsp;&nbsp;&nbsp; - symfony/var-dumper v2.7.45 conflicts with symfony/http-kernel[v3.4.21].<br>&nbsp;&nbsp;&nbsp; - symfony/var-dumper v2.7.46 conflicts with symfony/http-kernel[v3.4.21].<br>&nbsp;&nbsp;&nbsp; - symfony/var-dumper v2.7.47 conflicts with symfony/http-kernel[v3.4.21].<br>&nbsp;&nbsp;&nbsp; - symfony/var-dumper v2.7.48 conflicts with symfony/http-kernel[v3.4.21].<br>&nbsp;&nbsp;&nbsp; - symfony/var-dumper v2.7.49 conflicts with symfony/http-kernel[v3.4.21].<br>&nbsp;&nbsp;&nbsp; - symfony/var-dumper v2.7.5 conflicts with symfony/http-kernel[v3.4.21].<br>&nbsp;&nbsp;&nbsp; - symfony/var-dumper v2.7.50 conflicts with symfony/http-kernel[v3.4.21].<br>&nbsp;&nbsp;&nbsp; - symfony/var-dumper v2.7.6 conflicts with symfony/http-kernel[v3.4.21].<br>&nbsp;&nbsp;&nbsp; - symfony/var-dumper v2.7.7 conflicts with symfony/http-kernel[v3.4.21].<br>&nbsp;&nbsp;&nbsp; - symfony/var-dumper v2.7.8 conflicts with symfony/http-kernel[v3.4.21].<br>&nbsp;&nbsp;&nbsp; - symfony/var-dumper v2.7.9 conflicts with symfony/http-kernel[v3.4.21].<br>&nbsp;&nbsp;&nbsp; - symfony/var-dumper v2.8.0 conflicts with symfony/http-kernel[v3.4.21].<br>&nbsp;&nbsp;&nbsp; - symfony/var-dumper v2.8.0-BETA1 conflicts with symfony/http-kernel[v3.4.21].<br>&nbsp;&nbsp;&nbsp; - symfony/var-dumper v2.8.1 conflicts with symfony/http-kernel[v3.4.21].<br>&nbsp;&nbsp;&nbsp; - symfony/var-dumper v2.8.10 conflicts with symfony/http-kernel[v3.4.21].<br>&nbsp;&nbsp;&nbsp; - symfony/var-dumper v2.8.11 conflicts with symfony/http-kernel[v3.4.21].<br>&nbsp;&nbsp;&nbsp; - symfony/var-dumper v2.8.12 conflicts with symfony/http-kernel[v3.4.21].<br>&nbsp;&nbsp;&nbsp; - symfony/var-dumper v2.8.13 conflicts with symfony/http-kernel[v3.4.21].<br>&nbsp;&nbsp;&nbsp; - symfony/var-dumper v2.8.14 conflicts with symfony/http-kernel[v3.4.21].<br>&nbsp;&nbsp;&nbsp; - symfony/var-dumper v2.8.15 conflicts with symfony/http-kernel[v3.4.21].<br>&nbsp;&nbsp;&nbsp; - symfony/var-dumper v2.8.16 conflicts with symfony/http-kernel[v3.4.21].<br>&nbsp;&nbsp;&nbsp; - symfony/var-dumper v2.8.17 conflicts with symfony/http-kernel[v3.4.21].<br>&nbsp;&nbsp;&nbsp; - symfony/var-dumper v2.8.18 conflicts with symfony/http-kernel[v3.4.21].<br>&nbsp;&nbsp;&nbsp; - symfony/var-dumper v2.8.19 conflicts with symfony/http-kernel[v3.4.21].<br>&nbsp;&nbsp;&nbsp; - symfony/var-dumper v2.8.2 conflicts with symfony/http-kernel[v3.4.21].<br>&nbsp;&nbsp;&nbsp; - symfony/var-dumper v2.8.20 conflicts with symfony/http-kernel[v3.4.21].<br>&nbsp;&nbsp;&nbsp; - symfony/var-dumper v2.8.21 conflicts with symfony/http-kernel[v3.4.21].<br>&nbsp;&nbsp;&nbsp; - symfony/var-dumper v2.8.22 conflicts with symfony/http-kernel[v3.4.21].<br>&nbsp;&nbsp;&nbsp; - symfony/var-dumper v2.8.23 conflicts with symfony/http-kernel[v3.4.21].<br>&nbsp;&nbsp;&nbsp; - symfony/var-dumper v2.8.24 conflicts with symfony/http-kernel[v3.4.21].<br>&nbsp;&nbsp;&nbsp; - symfony/var-dumper v2.8.25 conflicts with symfony/http-kernel[v3.4.21].<br>&nbsp;&nbsp;&nbsp; - symfony/var-dumper v2.8.26 conflicts with symfony/http-kernel[v3.4.21].<br>&nbsp;&nbsp;&nbsp; - symfony/var-dumper v2.8.27 conflicts with symfony/http-kernel[v3.4.21].<br>&nbsp;&nbsp;&nbsp; - symfony/var-dumper v2.8.28 conflicts with symfony/http-kernel[v3.4.21].<br>&nbsp;&nbsp;&nbsp; - symfony/var-dumper v2.8.29 conflicts with symfony/http-kernel[v3.4.21].<br>&nbsp;&nbsp;&nbsp; - symfony/var-dumper v2.8.3 conflicts with symfony/http-kernel[v3.4.21].<br>&nbsp;&nbsp;&nbsp; - symfony/var-dumper v2.8.30 conflicts with symfony/http-kernel[v3.4.21].<br>&nbsp;&nbsp;&nbsp; - symfony/var-dumper v2.8.31 conflicts with symfony/http-kernel[v3.4.21].<br>&nbsp;&nbsp;&nbsp; - symfony/var-dumper v2.8.32 conflicts with symfony/http-kernel[v3.4.21].<br>&nbsp;&nbsp;&nbsp; - symfony/var-dumper v2.8.33 conflicts with symfony/http-kernel[v3.4.21].<br>&nbsp;&nbsp;&nbsp; - symfony/var-dumper v2.8.34 conflicts with symfony/http-kernel[v3.4.21].<br>&nbsp;&nbsp;&nbsp; - symfony/var-dumper v2.8.35 conflicts with symfony/http-kernel[v3.4.21].<br>&nbsp;&nbsp;&nbsp; - symfony/var-dumper v2.8.36 conflicts with symfony/http-kernel[v3.4.21].<br>&nbsp;&nbsp;&nbsp; - symfony/var-dumper v2.8.37 conflicts with symfony/http-kernel[v3.4.21].<br>&nbsp;&nbsp;&nbsp; - symfony/var-dumper v2.8.38 conflicts with symfony/http-kernel[v3.4.21].<br>&nbsp;&nbsp;&nbsp; - symfony/var-dumper v2.8.39 conflicts with symfony/http-kernel[v3.4.21].<br>&nbsp;&nbsp;&nbsp; - symfony/var-dumper v2.8.4 conflicts with symfony/http-kernel[v3.4.21].<br>&nbsp;&nbsp;&nbsp; - symfony/var-dumper v2.8.40 conflicts with symfony/http-kernel[v3.4.21].<br>&nbsp;&nbsp;&nbsp; - symfony/var-dumper v2.8.41 conflicts with symfony/http-kernel[v3.4.21].<br>&nbsp;&nbsp;&nbsp; - symfony/var-dumper v2.8.42 conflicts with symfony/http-kernel[v3.4.21].<br>&nbsp;&nbsp;&nbsp; - symfony/var-dumper v2.8.43 conflicts with symfony/http-kernel[v3.4.21].<br>&nbsp;&nbsp;&nbsp; - symfony/var-dumper v2.8.44 conflicts with symfony/http-kernel[v3.4.21].<br>&nbsp;&nbsp;&nbsp; - symfony/var-dumper v2.8.45 conflicts with symfony/http-kernel[v3.4.21].<br>&nbsp;&nbsp;&nbsp; - symfony/var-dumper v2.8.46 conflicts with symfony/http-kernel[v3.4.21].<br>&nbsp;&nbsp;&nbsp; - symfony/var-dumper v2.8.47 conflicts with symfony/http-kernel[v3.4.21].<br>&nbsp;&nbsp;&nbsp; - symfony/var-dumper v2.8.48 conflicts with symfony/http-kernel[v3.4.21].<br>&nbsp;&nbsp;&nbsp; - symfony/var-dumper v2.8.49 conflicts with symfony/http-kernel[v3.4.21].<br>&nbsp;&nbsp;&nbsp; - symfony/var-dumper v2.8.5 conflicts with symfony/http-kernel[v3.4.21].<br>&nbsp;&nbsp;&nbsp; - symfony/var-dumper v2.8.6 conflicts with symfony/http-kernel[v3.4.21].<br>&nbsp;&nbsp;&nbsp; - symfony/var-dumper v2.8.7 conflicts with symfony/http-kernel[v3.4.21].<br>&nbsp;&nbsp;&nbsp; - symfony/var-dumper v2.8.8 conflicts with symfony/http-kernel[v3.4.21].<br>&nbsp;&nbsp;&nbsp; - symfony/var-dumper v2.8.9 conflicts with symfony/http-kernel[v3.4.21].<br>&nbsp;&nbsp;&nbsp; - symfony/var-dumper v3.0.0 conflicts with symfony/http-kernel[v3.4.21].<br>&nbsp;&nbsp;&nbsp; - symfony/var-dumper v3.0.0-BETA1 conflicts with symfony/http-kernel[v3.4.21].<br>&nbsp;&nbsp;&nbsp; - symfony/var-dumper v3.0.1 conflicts with symfony/http-kernel[v3.4.21].<br>&nbsp;&nbsp;&nbsp; - symfony/var-dumper v3.0.2 conflicts with symfony/http-kernel[v3.4.21].<br>&nbsp;&nbsp;&nbsp; - symfony/var-dumper v3.0.3 conflicts with symfony/http-kernel[v3.4.21].<br>&nbsp;&nbsp;&nbsp; - symfony/var-dumper v3.0.4 conflicts with symfony/http-kernel[v3.4.21].<br>&nbsp;&nbsp;&nbsp; - symfony/var-dumper v3.0.5 conflicts with symfony/http-kernel[v3.4.21].<br>&nbsp;&nbsp;&nbsp; - symfony/var-dumper v3.0.6 conflicts with symfony/http-kernel[v3.4.21].<br>&nbsp;&nbsp;&nbsp; - symfony/var-dumper v3.0.7 conflicts with symfony/http-kernel[v3.4.21].<br>&nbsp;&nbsp;&nbsp; - symfony/var-dumper v3.0.8 conflicts with symfony/http-kernel[v3.4.21].<br>&nbsp;&nbsp;&nbsp; - symfony/var-dumper v3.0.9 conflicts with symfony/http-kernel[v3.4.21].<br>&nbsp;&nbsp;&nbsp; - symfony/var-dumper v3.1.0 conflicts with symfony/http-kernel[v3.4.21].<br>&nbsp;&nbsp;&nbsp; - symfony/var-dumper v3.1.0-BETA1 conflicts with symfony/http-kernel[v3.4.21].<br>&nbsp;&nbsp;&nbsp; - symfony/var-dumper v3.1.0-RC1 conflicts with symfony/http-kernel[v3.4.21].<br>&nbsp;&nbsp;&nbsp; - symfony/var-dumper v3.1.1 conflicts with symfony/http-kernel[v3.4.21].<br>&nbsp;&nbsp;&nbsp; - symfony/var-dumper v3.1.10 conflicts with symfony/http-kernel[v3.4.21].<br>&nbsp;&nbsp;&nbsp; - symfony/var-dumper v3.1.2 conflicts with symfony/http-kernel[v3.4.21].<br>&nbsp;&nbsp;&nbsp; - symfony/var-dumper v3.1.3 conflicts with symfony/http-kernel[v3.4.21].<br>&nbsp;&nbsp;&nbsp; - symfony/var-dumper v3.1.4 conflicts with symfony/http-kernel[v3.4.21].<br>&nbsp;&nbsp;&nbsp; - symfony/var-dumper v3.1.5 conflicts with symfony/http-kernel[v3.4.21].<br>&nbsp;&nbsp;&nbsp; - symfony/var-dumper v3.1.6 conflicts with symfony/http-kernel[v3.4.21].<br>&nbsp;&nbsp;&nbsp; - symfony/var-dumper v3.1.7 conflicts with symfony/http-kernel[v3.4.21].<br>&nbsp;&nbsp;&nbsp; - symfony/var-dumper v3.1.8 conflicts with symfony/http-kernel[v3.4.21].<br>&nbsp;&nbsp;&nbsp; - symfony/var-dumper v3.1.9 conflicts with symfony/http-kernel[v3.4.21].<br>&nbsp;&nbsp;&nbsp; - symfony/var-dumper v3.2.0 conflicts with symfony/http-kernel[v3.4.21].<br>&nbsp;&nbsp;&nbsp; - symfony/var-dumper v3.2.0-BETA1 conflicts with symfony/http-kernel[v3.4.21].<br>&nbsp;&nbsp;&nbsp; - symfony/var-dumper v3.2.0-RC1 conflicts with symfony/http-kernel[v3.4.21].<br>&nbsp;&nbsp;&nbsp; - symfony/var-dumper v3.2.0-RC2 conflicts with symfony/http-kernel[v3.4.21].<br>&nbsp;&nbsp;&nbsp; - symfony/var-dumper v3.2.1 conflicts with symfony/http-kernel[v3.4.21].<br>&nbsp;&nbsp;&nbsp; - symfony/var-dumper v3.2.10 conflicts with symfony/http-kernel[v3.4.21].<br>&nbsp;&nbsp;&nbsp; - symfony/var-dumper v3.2.11 conflicts with symfony/http-kernel[v3.4.21].<br>&nbsp;&nbsp;&nbsp; - symfony/var-dumper v3.2.12 conflicts with symfony/http-kernel[v3.4.21].<br>&nbsp;&nbsp;&nbsp; - symfony/var-dumper v3.2.13 conflicts with symfony/http-kernel[v3.4.21].<br>&nbsp;&nbsp;&nbsp; - symfony/var-dumper v3.2.14 conflicts with symfony/http-kernel[v3.4.21].<br>&nbsp;&nbsp;&nbsp; - symfony/var-dumper v3.2.2 conflicts with symfony/http-kernel[v3.4.21].<br>&nbsp;&nbsp;&nbsp; - symfony/var-dumper v3.2.3 conflicts with symfony/http-kernel[v3.4.21].<br>&nbsp;&nbsp;&nbsp; - symfony/var-dumper v3.2.4 conflicts with symfony/http-kernel[v3.4.21].<br>&nbsp;&nbsp;&nbsp; - symfony/var-dumper v3.2.5 conflicts with symfony/http-kernel[v3.4.21].<br>&nbsp;&nbsp;&nbsp; - symfony/var-dumper v3.2.6 conflicts with symfony/http-kernel[v3.4.21].<br>&nbsp;&nbsp;&nbsp; - symfony/var-dumper v3.2.7 conflicts with symfony/http-kernel[v3.4.21].<br>&nbsp;&nbsp;&nbsp; - symfony/var-dumper v3.2.8 conflicts with symfony/http-kernel[v3.4.21].<br>&nbsp;&nbsp;&nbsp; - symfony/var-dumper v3.2.9 conflicts with symfony/http-kernel[v3.4.21].<br>&nbsp;&nbsp;&nbsp; - Conclusion: don't install symfony/var-dumper v4.2.2|install symfony/var-dumper 2.7.x-dev|install symfony/var-dumper 2.8.x-dev|install symfony/var-dumper 3.0.x-dev|install symfony/var-dumper 3.1.x-dev|install symfony/var-dumper 3.2.x-dev|install symfony/var-du<br>mper v2.7.0|install symfony/var-dumper v2.7.0-BETA1|install symfony/var-dumper v2.7.0-BETA2|install symfony/var-dumper v2.7.1|install symfony/var-dumper v2.7.10|install symfony/var-dumper v2.7.11|install symfony/var-dumper v2.7.12|install symfony/var-dumper v2.7.13<br>|install symfony/var-dumper v2.7.14|install symfony/var-dumper v2.7.15|install symfony/var-dumper v2.7.16|install symfony/var-dumper v2.7.17|install symfony/var-dumper v2.7.18|install symfony/var-dumper v2.7.19|install symfony/var-dumper v2.7.2|install symfony/var-<br>dumper v2.7.20|install symfony/var-dumper v2.7.21|install symfony/var-dumper v2.7.22|install symfony/var-dumper v2.7.23|install symfony/var-dumper v2.7.24|install symfony/var-dumper v2.7.25|install symfony/var-dumper v2.7.26|install symfony/var-dumper v2.7.27|insta<br>ll symfony/var-dumper v2.7.28|install symfony/var-dumper v2.7.29|install symfony/var-dumper v2.7.3|install symfony/var-dumper v2.7.30|install symfony/var-dumper v2.7.31|install symfony/var-dumper v2.7.32|install symfony/var-dumper v2.7.33|install symfony/var-dumper<br> v2.7.34|install symfony/var-dumper v2.7.35|install symfony/var-dumper v2.7.36|install symfony/var-dumper v2.7.37|install symfony/var-dumper v2.7.38|install symfony/var-dumper v2.7.39|install symfony/var-dumper v2.7.4|install symfony/var-dumper v2.7.40|install symf<br>ony/var-dumper v2.7.41|install symfony/var-dumper v2.7.42|install symfony/var-dumper v2.7.43|install symfony/var-dumper v2.7.44|install symfony/var-dumper v2.7.45|install symfony/var-dumper v2.7.46|install symfony/var-dumper v2.7.47|install symfony/var-dumper v2.7.<br>48|install symfony/var-dumper v2.7.49|install symfony/var-dumper v2.7.5|install symfony/var-dumper v2.7.50|install symfony/var-dumper v2.7.6|install symfony/var-dumper v2.7.7|install symfony/var-dumper v2.7.8|install symfony/var-dumper v2.7.9|install symfony/var-du<br>mper v2.8.0|install symfony/var-dumper v2.8.0-BETA1|install symfony/var-dumper v2.8.1|install symfony/var-dumper v2.8.10|install symfony/var-dumper v2.8.11|install symfony/var-dumper v2.8.12|install symfony/var-dumper v2.8.13|install symfony/var-dumper v2.8.14|inst<br>all symfony/var-dumper v2.8.15|install symfony/var-dumper v2.8.16|install symfony/var-dumper v2.8.17|install symfony/var-dumper v2.8.18|install symfony/var-dumper v2.8.19|install symfony/var-dumper v2.8.2|install symfony/var-dumper v2.8.20|install symfony/var-dumpe<br>r v2.8.21|install symfony/var-dumper v2.8.22|install symfony/var-dumper v2.8.23|install symfony/var-dumper v2.8.24|install symfony/var-dumper v2.8.25|install symfony/var-dumper v2.8.26|install symfony/var-dumper v2.8.27|install symfony/var-dumper v2.8.28|install sy<br>mfony/var-dumper v2.8.29|install symfony/var-dumper v2.8.3|install symfony/var-dumper v2.8.30|install symfony/var-dumper v2.8.31|install symfony/var-dumper v2.8.32|install symfony/var-dumper v2.8.33|install symfony/var-dumper v2.8.34|install symfony/var-dumper v2.8<br>.35|install symfony/var-dumper v2.8.36|install symfony/var-dumper v2.8.37|install symfony/var-dumper v2.8.38|install symfony/var-dumper v2.8.39|install symfony/var-dumper v2.8.4|install symfony/var-dumper v2.8.40|install symfony/var-dumper v2.8.41|install symfony/v<br>ar-dumper v2.8.42|install symfony/var-dumper v2.8.43|install symfony/var-dumper v2.8.44|install symfony/var-dumper v2.8.45|install symfony/var-dumper v2.8.46|install symfony/var-dumper v2.8.47|install symfony/var-dumper v2.8.48|install symfony/var-dumper v2.8.49|in<br>stall symfony/var-dumper v2.8.5|install symfony/var-dumper v2.8.6|install symfony/var-dumper v2.8.7|install symfony/var-dumper v2.8.8|install symfony/var-dumper v2.8.9|install symfony/var-dumper v3.0.0|install symfony/var-dumper v3.0.0-BETA1|install symfony/var-dum<br>per v3.0.1|install symfony/var-dumper v3.0.2|install symfony/var-dumper v3.0.3|install symfony/var-dumper v3.0.4|install symfony/var-dumper v3.0.5|install symfony/var-dumper v3.0.6|install symfony/var-dumper v3.0.7|install symfony/var-dumper v3.0.8|install symfony/<br>var-dumper v3.0.9|install symfony/var-dumper v3.1.0|install symfony/var-dumper v3.1.0-BETA1|install symfony/var-dumper v3.1.0-RC1|install symfony/var-dumper v3.1.1|install symfony/var-dumper v3.1.10|install symfony/var-dumper v3.1.2|install symfony/var-dumper v3.1.<br>3|install symfony/var-dumper v3.1.4|install symfony/var-dumper v3.1.5|install symfony/var-dumper v3.1.6|install symfony/var-dumper v3.1.7|install symfony/var-dumper v3.1.8|install symfony/var-dumper v3.1.9|install symfony/var-dumper v3.2.0|install symfony/var-dumpe<br>r v3.2.0-BETA1|install symfony/var-dumper v3.2.0-RC1|install symfony/var-dumper v3.2.0-RC2|install symfony/var-dumper v3.2.1|install symfony/var-dumper v3.2.10|install symfony/var-dumper v3.2.11|install symfony/var-dumper v3.2.12|install symfony/var-dumper v3.2.13|<br>install symfony/var-dumper v3.2.14|install symfony/var-dumper v3.2.2|install symfony/var-dumper v3.2.3|install symfony/var-dumper v3.2.4|install symfony/var-dumper v3.2.5|install symfony/var-dumper v3.2.6|install symfony/var-dumper v3.2.7|install symfony/var-dumper<br> v3.2.8|install symfony/var-dumper v3.2.9<br>&nbsp;&nbsp;&nbsp; - Conclusion: don't install drupal/devel 2.0.0|remove symfony/var-dumper v4.2.2|install symfony/var-dumper 2.7.x-dev|install symfony/var-dumper 2.8.x-dev|install symfony/var-dumper 3.0.x-dev|install symfony/var-dumper 3.1.x-dev|install symfony/var-dumper 3.2.x-<br>dev|install symfony/var-dumper v2.7.0|install symfony/var-dumper v2.7.0-BETA1|install symfony/var-dumper v2.7.0-BETA2|install symfony/var-dumper v2.7.1|install symfony/var-dumper v2.7.10|install symfony/var-dumper v2.7.11|install symfony/var-dumper v2.7.12|install<br>symfony/var-dumper v2.7.13|install symfony/var-dumper v2.7.14|install symfony/var-dumper v2.7.15|install symfony/var-dumper v2.7.16|install symfony/var-dumper v2.7.17|install symfony/var-dumper v2.7.18|install symfony/var-dumper v2.7.19|install symfony/var-dumper v<br>2.7.2|install symfony/var-dumper v2.7.20|install symfony/var-dumper v2.7.21|install symfony/var-dumper v2.7.22|install symfony/var-dumper v2.7.23|install symfony/var-dumper v2.7.24|install symfony/var-dumper v2.7.25|install symfony/var-dumper v2.7.26|install symfon<br>y/var-dumper v2.7.27|install symfony/var-dumper v2.7.28|install symfony/var-dumper v2.7.29|install symfony/var-dumper v2.7.3|install symfony/var-dumper v2.7.30|install symfony/var-dumper v2.7.31|install symfony/var-dumper v2.7.32|install symfony/var-dumper v2.7.33|<br>install symfony/var-dumper v2.7.34|install symfony/var-dumper v2.7.35|install symfony/var-dumper v2.7.36|install symfony/var-dumper v2.7.37|install symfony/var-dumper v2.7.38|install symfony/var-dumper v2.7.39|install symfony/var-dumper v2.7.4|install symfony/var-d<br>umper v2.7.40|install symfony/var-dumper v2.7.41|install symfony/var-dumper v2.7.42|install symfony/var-dumper v2.7.43|install symfony/var-dumper v2.7.44|install symfony/var-dumper v2.7.45|install symfony/var-dumper v2.7.46|install symfony/var-dumper v2.7.47|instal<br>l symfony/var-dumper v2.7.48|install symfony/var-dumper v2.7.49|install symfony/var-dumper v2.7.5|install symfony/var-dumper v2.7.50|install symfony/var-dumper v2.7.6|install symfony/var-dumper v2.7.7|install symfony/var-dumper v2.7.8|install symfony/var-dumper v2.<br>7.9|install symfony/var-dumper v2.8.0|install symfony/var-dumper v2.8.0-BETA1|install symfony/var-dumper v2.8.1|install symfony/var-dumper v2.8.10|install symfony/var-dumper v2.8.11|install symfony/var-dumper v2.8.12|install symfony/var-dumper v2.8.13|install symfo<br>ny/var-dumper v2.8.14|install symfony/var-dumper v2.8.15|install symfony/var-dumper v2.8.16|install symfony/var-dumper v2.8.17|install symfony/var-dumper v2.8.18|install symfony/var-dumper v2.8.19|install symfony/var-dumper v2.8.2|install symfony/var-dumper v2.8.20<br>|install symfony/var-dumper v2.8.21|install symfony/var-dumper v2.8.22|install symfony/var-dumper v2.8.23|install symfony/var-dumper v2.8.24|install symfony/var-dumper v2.8.25|install symfony/var-dumper v2.8.26|install symfony/var-dumper v2.8.27|install symfony/var<br>-dumper v2.8.28|install symfony/var-dumper v2.8.29|install symfony/var-dumper v2.8.3|install symfony/var-dumper v2.8.30|install symfony/var-dumper v2.8.31|install symfony/var-dumper v2.8.32|install symfony/var-dumper v2.8.33|install symfony/var-dumper v2.8.34|insta<br>ll symfony/var-dumper v2.8.35|install symfony/var-dumper v2.8.36|install symfony/var-dumper v2.8.37|install symfony/var-dumper v2.8.38|install symfony/var-dumper v2.8.39|install symfony/var-dumper v2.8.4|install symfony/var-dumper v2.8.40|install symfony/var-dumper<br> v2.8.41|install symfony/var-dumper v2.8.42|install symfony/var-dumper v2.8.43|install symfony/var-dumper v2.8.44|install symfony/var-dumper v2.8.45|install symfony/var-dumper v2.8.46|install symfony/var-dumper v2.8.47|install symfony/var-dumper v2.8.48|install sym<br>fony/var-dumper v2.8.49|install symfony/var-dumper v2.8.5|install symfony/var-dumper v2.8.6|install symfony/var-dumper v2.8.7|install symfony/var-dumper v2.8.8|install symfony/var-dumper v2.8.9|install symfony/var-dumper v3.0.0|install symfony/var-dumper v3.0.0-BET<br>A1|install symfony/var-dumper v3.0.1|install symfony/var-dumper v3.0.2|install symfony/var-dumper v3.0.3|install symfony/var-dumper v3.0.4|install symfony/var-dumper v3.0.5|install symfony/var-dumper v3.0.6|install symfony/var-dumper v3.0.7|install symfony/var-dump<br>er v3.0.8|install symfony/var-dumper v3.0.9|install symfony/var-dumper v3.1.0|install symfony/var-dumper v3.1.0-BETA1|install symfony/var-dumper v3.1.0-RC1|install symfony/var-dumper v3.1.1|install symfony/var-dumper v3.1.10|install symfony/var-dumper v3.1.2|instal<br>l symfony/var-dumper v3.1.3|install symfony/var-dumper v3.1.4|install symfony/var-dumper v3.1.5|install symfony/var-dumper v3.1.6|install symfony/var-dumper v3.1.7|install symfony/var-dumper v3.1.8|install symfony/var-dumper v3.1.9|install symfony/var-dumper v3.2.0<br>|install symfony/var-dumper v3.2.0-BETA1|install symfony/var-dumper v3.2.0-RC1|install symfony/var-dumper v3.2.0-RC2|install symfony/var-dumper v3.2.1|install symfony/var-dumper v3.2.10|install symfony/var-dumper v3.2.11|install symfony/var-dumper v3.2.12|install s<br>ymfony/var-dumper v3.2.13|install symfony/var-dumper v3.2.14|install symfony/var-dumper v3.2.2|install symfony/var-dumper v3.2.3|install symfony/var-dumper v3.2.4|install symfony/var-dumper v3.2.5|install symfony/var-dumper v3.2.6|install symfony/var-dumper v3.2.7|<br>install symfony/var-dumper v3.2.8|install symfony/var-dumper v3.2.9<br>&nbsp;&nbsp;&nbsp; - Conclusion: don't install drupal/devel 2.0.0|don't install symfony/var-dumper v4.2.2|install symfony/var-dumper 2.7.x-dev|install symfony/var-dumper 2.8.x-dev|install symfony/var-dumper 3.0.x-dev|install symfony/var-dumper 3.1.x-dev|install symfony/var-dumper<br> 3.2.x-dev|install symfony/var-dumper v2.7.0|install symfony/var-dumper v2.7.0-BETA1|install symfony/var-dumper v2.7.0-BETA2|install symfony/var-dumper v2.7.1|install symfony/var-dumper v2.7.10|install symfony/var-dumper v2.7.11|install symfony/var-dumper v2.7.12|i<br>nstall symfony/var-dumper v2.7.13|install symfony/var-dumper v2.7.14|install symfony/var-dumper v2.7.15|install symfony/var-dumper v2.7.16|install symfony/var-dumper v2.7.17|install symfony/var-dumper v2.7.18|install symfony/var-dumper v2.7.19|install symfony/var-d<br>umper v2.7.2|install symfony/var-dumper v2.7.20|install symfony/var-dumper v2.7.21|install symfony/var-dumper v2.7.22|install symfony/var-dumper v2.7.23|install symfony/var-dumper v2.7.24|install symfony/var-dumper v2.7.25|install symfony/var-dumper v2.7.26|install<br> symfony/var-dumper v2.7.27|install symfony/var-dumper v2.7.28|install symfony/var-dumper v2.7.29|install symfony/var-dumper v2.7.3|install symfony/var-dumper v2.7.30|install symfony/var-dumper v2.7.31|install symfony/var-dumper v2.7.32|install symfony/var-dumper v<br>2.7.33|install symfony/var-dumper v2.7.34|install symfony/var-dumper v2.7.35|install symfony/var-dumper v2.7.36|install symfony/var-dumper v2.7.37|install symfony/var-dumper v2.7.38|install symfony/var-dumper v2.7.39|install symfony/var-dumper v2.7.4|install symfon<br>y/var-dumper v2.7.40|install symfony/var-dumper v2.7.41|install symfony/var-dumper v2.7.42|install symfony/var-dumper v2.7.43|install symfony/var-dumper v2.7.44|install symfony/var-dumper v2.7.45|install symfony/var-dumper v2.7.46|install symfony/var-dumper v2.7.47<br>|install symfony/var-dumper v2.7.48|install symfony/var-dumper v2.7.49|install symfony/var-dumper v2.7.5|install symfony/var-dumper v2.7.50|install symfony/var-dumper v2.7.6|install symfony/var-dumper v2.7.7|install symfony/var-dumper v2.7.8|install symfony/var-dum<br>per v2.7.9|install symfony/var-dumper v2.8.0|install symfony/var-dumper v2.8.0-BETA1|install symfony/var-dumper v2.8.1|install symfony/var-dumper v2.8.10|install symfony/var-dumper v2.8.11|install symfony/var-dumper v2.8.12|install symfony/var-dumper v2.8.13|instal<br>l symfony/var-dumper v2.8.14|install symfony/var-dumper v2.8.15|install symfony/var-dumper v2.8.16|install symfony/var-dumper v2.8.17|install symfony/var-dumper v2.8.18|install symfony/var-dumper v2.8.19|install symfony/var-dumper v2.8.2|install symfony/var-dumper<br>v2.8.20|install symfony/var-dumper v2.8.21|install symfony/var-dumper v2.8.22|install symfony/var-dumper v2.8.23|install symfony/var-dumper v2.8.24|install symfony/var-dumper v2.8.25|install symfony/var-dumper v2.8.26|install symfony/var-dumper v2.8.27|install symf<br>ony/var-dumper v2.8.28|install symfony/var-dumper v2.8.29|install symfony/var-dumper v2.8.3|install symfony/var-dumper v2.8.30|install symfony/var-dumper v2.8.31|install symfony/var-dumper v2.8.32|install symfony/var-dumper v2.8.33|install symfony/var-dumper v2.8.3<br>4|install symfony/var-dumper v2.8.35|install symfony/var-dumper v2.8.36|install symfony/var-dumper v2.8.37|install symfony/var-dumper v2.8.38|install symfony/var-dumper v2.8.39|install symfony/var-dumper v2.8.4|install symfony/var-dumper v2.8.40|install symfony/var<br>-dumper v2.8.41|install symfony/var-dumper v2.8.42|install symfony/var-dumper v2.8.43|install symfony/var-dumper v2.8.44|install symfony/var-dumper v2.8.45|install symfony/var-dumper v2.8.46|install symfony/var-dumper v2.8.47|install symfony/var-dumper v2.8.48|inst<br>all symfony/var-dumper v2.8.49|install symfony/var-dumper v2.8.5|install symfony/var-dumper v2.8.6|install symfony/var-dumper v2.8.7|install symfony/var-dumper v2.8.8|install symfony/var-dumper v2.8.9|install symfony/var-dumper v3.0.0|install symfony/var-dumper v3.<br>0.0-BETA1|install symfony/var-dumper v3.0.1|install symfony/var-dumper v3.0.2|install symfony/var-dumper v3.0.3|install symfony/var-dumper v3.0.4|install symfony/var-dumper v3.0.5|install symfony/var-dumper v3.0.6|install symfony/var-dumper v3.0.7|install symfony/v<br>ar-dumper v3.0.8|install symfony/var-dumper v3.0.9|install symfony/var-dumper v3.1.0|install symfony/var-dumper v3.1.0-BETA1|install symfony/var-dumper v3.1.0-RC1|install symfony/var-dumper v3.1.1|install symfony/var-dumper v3.1.10|install symfony/var-dumper v3.1.2<br>|install symfony/var-dumper v3.1.3|install symfony/var-dumper v3.1.4|install symfony/var-dumper v3.1.5|install symfony/var-dumper v3.1.6|install symfony/var-dumper v3.1.7|install symfony/var-dumper v3.1.8|install symfony/var-dumper v3.1.9|install symfony/var-dumper<br> v3.2.0|install symfony/var-dumper v3.2.0-BETA1|install symfony/var-dumper v3.2.0-RC1|install symfony/var-dumper v3.2.0-RC2|install symfony/var-dumper v3.2.1|install symfony/var-dumper v3.2.10|install symfony/var-dumper v3.2.11|install symfony/var-dumper v3.2.12|in<br>stall symfony/var-dumper v3.2.13|install symfony/var-dumper v3.2.14|install symfony/var-dumper v3.2.2|install symfony/var-dumper v3.2.3|install symfony/var-dumper v3.2.4|install symfony/var-dumper v3.2.5|install symfony/var-dumper v3.2.6|install symfony/var-dumper<br>v3.2.7|install symfony/var-dumper v3.2.8|install symfony/var-dumper v3.2.9<br>&nbsp;&nbsp;&nbsp; - Installation request for symfony/http-kernel (locked at v3.4.21) -&gt; satisfiable by symfony/http-kernel[v3.4.21].<br>&nbsp;&nbsp;&nbsp; - Conclusion: don't install drupal/devel 2.0.0|remove symfony/var-dumper v4.2.2|install symfony/var-dumper 2.7.x-dev|install symfony/var-dumper 2.8.x-dev|install symfony/var-dumper 3.0.x-dev|install symfony/var-dumper 3.1.x-dev|install symfony/var-dumper 3.2.x-<br>dev|install symfony/var-dumper v2.7.0|install symfony/var-dumper v2.7.0-BETA1|install symfony/var-dumper v2.7.0-BETA2|install symfony/var-dumper v2.7.1|install symfony/var-dumper v2.7.10|install symfony/var-dumper v2.7.11|install symfony/var-dumper v2.7.12|install<br>symfony/var-dumper v2.7.13|install symfony/var-dumper v2.7.14|install symfony/var-dumper v2.7.15|install symfony/var-dumper v2.7.16|install symfony/var-dumper v2.7.17|install symfony/var-dumper v2.7.18|install symfony/var-dumper v2.7.19|install symfony/var-dumper v<br>2.7.2|install symfony/var-dumper v2.7.20|install symfony/var-dumper v2.7.21|install symfony/var-dumper v2.7.22|install symfony/var-dumper v2.7.23|install symfony/var-dumper v2.7.24|install symfony/var-dumper v2.7.25|install symfony/var-dumper v2.7.26|install symfon<br>y/var-dumper v2.7.27|install symfony/var-dumper v2.7.28|install symfony/var-dumper v2.7.29|install symfony/var-dumper v2.7.3|install symfony/var-dumper v2.7.30|install symfony/var-dumper v2.7.31|install symfony/var-dumper v2.7.32|install symfony/var-dumper v2.7.33|<br>install symfony/var-dumper v2.7.34|install symfony/var-dumper v2.7.35|install symfony/var-dumper v2.7.36|install symfony/var-dumper v2.7.37|install symfony/var-dumper v2.7.38|install symfony/var-dumper v2.7.39|install symfony/var-dumper v2.7.4|install symfony/var-d<br>umper v2.7.40|install symfony/var-dumper v2.7.41|install symfony/var-dumper v2.7.42|install symfony/var-dumper v2.7.43|install symfony/var-dumper v2.7.44|install symfony/var-dumper v2.7.45|install symfony/var-dumper v2.7.46|install symfony/var-dumper v2.7.47|instal<br>l symfony/var-dumper v2.7.48|install symfony/var-dumper v2.7.49|install symfony/var-dumper v2.7.5|install symfony/var-dumper v2.7.50|install symfony/var-dumper v2.7.6|install symfony/var-dumper v2.7.7|install symfony/var-dumper v2.7.8|install symfony/var-dumper v2.<br>7.9|install symfony/var-dumper v2.8.0|install symfony/var-dumper v2.8.0-BETA1|install symfony/var-dumper v2.8.1|install symfony/var-dumper v2.8.10|install symfony/var-dumper v2.8.11|install symfony/var-dumper v2.8.12|install symfony/var-dumper v2.8.13|install symfo<br>ny/var-dumper v2.8.14|install symfony/var-dumper v2.8.15|install symfony/var-dumper v2.8.16|install symfony/var-dumper v2.8.17|install symfony/var-dumper v2.8.18|install symfony/var-dumper v2.8.19|install symfony/var-dumper v2.8.2|install symfony/var-dumper v2.8.20<br>|install symfony/var-dumper v2.8.21|install symfony/var-dumper v2.8.22|install symfony/var-dumper v2.8.23|install symfony/var-dumper v2.8.24|install symfony/var-dumper v2.8.25|install symfony/var-dumper v2.8.26|install symfony/var-dumper v2.8.27|install symfony/var<br>-dumper v2.8.28|install symfony/var-dumper v2.8.29|install symfony/var-dumper v2.8.3|install symfony/var-dumper v2.8.30|install symfony/var-dumper v2.8.31|install symfony/var-dumper v2.8.32|install symfony/var-dumper v2.8.33|install symfony/var-dumper v2.8.34|insta<br>ll symfony/var-dumper v2.8.35|install symfony/var-dumper v2.8.36|install symfony/var-dumper v2.8.37|install symfony/var-dumper v2.8.38|install symfony/var-dumper v2.8.39|install symfony/var-dumper v2.8.4|install symfony/var-dumper v2.8.40|install symfony/var-dumper<br> v2.8.41|install symfony/var-dumper v2.8.42|install symfony/var-dumper v2.8.43|install symfony/var-dumper v2.8.44|install symfony/var-dumper v2.8.45|install symfony/var-dumper v2.8.46|install symfony/var-dumper v2.8.47|install symfony/var-dumper v2.8.48|install sym<br>fony/var-dumper v2.8.49|install symfony/var-dumper v2.8.5|install symfony/var-dumper v2.8.6|install symfony/var-dumper v2.8.7|install symfony/var-dumper v2.8.8|install symfony/var-dumper v2.8.9|install symfony/var-dumper v3.0.0|install symfony/var-dumper v3.0.0-BET<br>A1|install symfony/var-dumper v3.0.1|install symfony/var-dumper v3.0.2|install symfony/var-dumper v3.0.3|install symfony/var-dumper v3.0.4|install symfony/var-dumper v3.0.5|install symfony/var-dumper v3.0.6|install symfony/var-dumper v3.0.7|install symfony/var-dump<br>er v3.0.8|install symfony/var-dumper v3.0.9|install symfony/var-dumper v3.1.0|install symfony/var-dumper v3.1.0-BETA1|install symfony/var-dumper v3.1.0-RC1|install symfony/var-dumper v3.1.1|install symfony/var-dumper v3.1.10|install symfony/var-dumper v3.1.2|instal<br>l symfony/var-dumper v3.1.3|install symfony/var-dumper v3.1.4|install symfony/var-dumper v3.1.5|install symfony/var-dumper v3.1.6|install symfony/var-dumper v3.1.7|install symfony/var-dumper v3.1.8|install symfony/var-dumper v3.1.9|install symfony/var-dumper v3.2.0<br>|install symfony/var-dumper v3.2.0-BETA1|install symfony/var-dumper v3.2.0-RC1|install symfony/var-dumper v3.2.0-RC2|install symfony/var-dumper v3.2.1|install symfony/var-dumper v3.2.10|install symfony/var-dumper v3.2.11|install symfony/var-dumper v3.2.12|install s<br>ymfony/var-dumper v3.2.13|install symfony/var-dumper v3.2.14|install symfony/var-dumper v3.2.2|install symfony/var-dumper v3.2.3|install symfony/var-dumper v3.2.4|install symfony/var-dumper v3.2.5|install symfony/var-dumper v3.2.6|install symfony/var-dumper v3.2.7|<br>install symfony/var-dumper v3.2.8|install symfony/var-dumper v3.2.9<br>&nbsp;&nbsp;&nbsp; - Conclusion: don't install drupal/devel 2.0.0|don't install symfony/var-dumper v4.2.2|install symfony/var-dumper 2.7.x-dev|install symfony/var-dumper 2.8.x-dev|install symfony/var-dumper 3.0.x-dev|install symfony/var-dumper 3.1.x-dev|install symfony/var-dumper<br> 3.2.x-dev|install symfony/var-dumper v2.7.0|install symfony/var-dumper v2.7.0-BETA1|install symfony/var-dumper v2.7.0-BETA2|install symfony/var-dumper v2.7.1|install symfony/var-dumper v2.7.10|install symfony/var-dumper v2.7.11|install symfony/var-dumper v2.7.12|i<br>nstall symfony/var-dumper v2.7.13|install symfony/var-dumper v2.7.14|install symfony/var-dumper v2.7.15|install symfony/var-dumper v2.7.16|install symfony/var-dumper v2.7.17|install symfony/var-dumper v2.7.18|install symfony/var-dumper v2.7.19|install symfony/var-d<br>umper v2.7.2|install symfony/var-dumper v2.7.20|install symfony/var-dumper v2.7.21|install symfony/var-dumper v2.7.22|install symfony/var-dumper v2.7.23|install symfony/var-dumper v2.7.24|install symfony/var-dumper v2.7.25|install symfony/var-dumper v2.7.26|install<br> symfony/var-dumper v2.7.27|install symfony/var-dumper v2.7.28|install symfony/var-dumper v2.7.29|install symfony/var-dumper v2.7.3|install symfony/var-dumper v2.7.30|install symfony/var-dumper v2.7.31|install symfony/var-dumper v2.7.32|install symfony/var-dumper v<br>2.7.33|install symfony/var-dumper v2.7.34|install symfony/var-dumper v2.7.35|install symfony/var-dumper v2.7.36|install symfony/var-dumper v2.7.37|install symfony/var-dumper v2.7.38|install symfony/var-dumper v2.7.39|install symfony/var-dumper v2.7.4|install symfon<br>y/var-dumper v2.7.40|install symfony/var-dumper v2.7.41|install symfony/var-dumper v2.7.42|install symfony/var-dumper v2.7.43|install symfony/var-dumper v2.7.44|install symfony/var-dumper v2.7.45|install symfony/var-dumper v2.7.46|install symfony/var-dumper v2.7.47<br>|install symfony/var-dumper v2.7.48|install symfony/var-dumper v2.7.49|install symfony/var-dumper v2.7.5|install symfony/var-dumper v2.7.50|install symfony/var-dumper v2.7.6|install symfony/var-dumper v2.7.7|install symfony/var-dumper v2.7.8|install symfony/var-dum<br>per v2.7.9|install symfony/var-dumper v2.8.0|install symfony/var-dumper v2.8.0-BETA1|install symfony/var-dumper v2.8.1|install symfony/var-dumper v2.8.10|install symfony/var-dumper v2.8.11|install symfony/var-dumper v2.8.12|install symfony/var-dumper v2.8.13|instal<br>l symfony/var-dumper v2.8.14|install symfony/var-dumper v2.8.15|install symfony/var-dumper v2.8.16|install symfony/var-dumper v2.8.17|install symfony/var-dumper v2.8.18|install symfony/var-dumper v2.8.19|install symfony/var-dumper v2.8.2|install symfony/var-dumper<br>v2.8.20|install symfony/var-dumper v2.8.21|install symfony/var-dumper v2.8.22|install symfony/var-dumper v2.8.23|install symfony/var-dumper v2.8.24|install symfony/var-dumper v2.8.25|install symfony/var-dumper v2.8.26|install symfony/var-dumper v2.8.27|install symf<br>ony/var-dumper v2.8.28|install symfony/var-dumper v2.8.29|install symfony/var-dumper v2.8.3|install symfony/var-dumper v2.8.30|install symfony/var-dumper v2.8.31|install symfony/var-dumper v2.8.32|install symfony/var-dumper v2.8.33|install symfony/var-dumper v2.8.3<br>4|install symfony/var-dumper v2.8.35|install symfony/var-dumper v2.8.36|install symfony/var-dumper v2.8.37|install symfony/var-dumper v2.8.38|install symfony/var-dumper v2.8.39|install symfony/var-dumper v2.8.4|install symfony/var-dumper v2.8.40|install symfony/var<br>-dumper v2.8.41|install symfony/var-dumper v2.8.42|install symfony/var-dumper v2.8.43|install symfony/var-dumper v2.8.44|install symfony/var-dumper v2.8.45|install symfony/var-dumper v2.8.46|install symfony/var-dumper v2.8.47|install symfony/var-dumper v2.8.48|inst<br>all symfony/var-dumper v2.8.49|install symfony/var-dumper v2.8.5|install symfony/var-dumper v2.8.6|install symfony/var-dumper v2.8.7|install symfony/var-dumper v2.8.8|install symfony/var-dumper v2.8.9|install symfony/var-dumper v3.0.0|install symfony/var-dumper v3.<br>0.0-BETA1|install symfony/var-dumper v3.0.1|install symfony/var-dumper v3.0.2|install symfony/var-dumper v3.0.3|install symfony/var-dumper v3.0.4|install symfony/var-dumper v3.0.5|install symfony/var-dumper v3.0.6|install symfony/var-dumper v3.0.7|install symfony/v<br>ar-dumper v3.0.8|install symfony/var-dumper v3.0.9|install symfony/var-dumper v3.1.0|install symfony/var-dumper v3.1.0-BETA1|install symfony/var-dumper v3.1.0-RC1|install symfony/var-dumper v3.1.1|install symfony/var-dumper v3.1.10|install symfony/var-dumper v3.1.2<br>|install symfony/var-dumper v3.1.3|install symfony/var-dumper v3.1.4|install symfony/var-dumper v3.1.5|install symfony/var-dumper v3.1.6|install symfony/var-dumper v3.1.7|install symfony/var-dumper v3.1.8|install symfony/var-dumper v3.1.9|install symfony/var-dumper<br> v3.2.0|install symfony/var-dumper v3.2.0-BETA1|install symfony/var-dumper v3.2.0-RC1|install symfony/var-dumper v3.2.0-RC2|install symfony/var-dumper v3.2.1|install symfony/var-dumper v3.2.10|install symfony/var-dumper v3.2.11|install symfony/var-dumper v3.2.12|in<br>stall symfony/var-dumper v3.2.13|install symfony/var-dumper v3.2.14|install symfony/var-dumper v3.2.2|install symfony/var-dumper v3.2.3|install symfony/var-dumper v3.2.4|install symfony/var-dumper v3.2.5|install symfony/var-dumper v3.2.6|install symfony/var-dumper<br>v3.2.7|install symfony/var-dumper v3.2.8|install symfony/var-dumper v3.2.9<br>&nbsp;&nbsp;&nbsp; - Installation request for drupal/devel ^2.0 -&gt; satisfiable by drupal/devel[2.x-dev, 2.0.0].<br>&nbsp;&nbsp;&nbsp; - Conclusion: remove symfony/var-dumper v4.2.2|install symfony/var-dumper 2.7.x-dev|install symfony/var-dumper 2.8.x-dev|install symfony/var-dumper 3.0.x-dev|install symfony/var-dumper 3.1.x-dev|install symfony/var-dumper 3.2.x-dev|install symfony/var-dumper v2<br>.7.0|install symfony/var-dumper v2.7.0-BETA1|install symfony/var-dumper v2.7.0-BETA2|install symfony/var-dumper v2.7.1|install symfony/var-dumper v2.7.10|install symfony/var-dumper v2.7.11|install symfony/var-dumper v2.7.12|install symfony/var-dumper v2.7.13|instal<br>l symfony/var-dumper v2.7.14|install symfony/var-dumper v2.7.15|install symfony/var-dumper v2.7.16|install symfony/var-dumper v2.7.17|install symfony/var-dumper v2.7.18|install symfony/var-dumper v2.7.19|install symfony/var-dumper v2.7.2|install symfony/var-dumper<br>v2.7.20|install symfony/var-dumper v2.7.21|install symfony/var-dumper v2.7.22|install symfony/var-dumper v2.7.23|install symfony/var-dumper v2.7.24|install symfony/var-dumper v2.7.25|install symfony/var-dumper v2.7.26|install symfony/var-dumper v2.7.27|install symf<br>ony/var-dumper v2.7.28|install symfony/var-dumper v2.7.29|install symfony/var-dumper v2.7.3|install symfony/var-dumper v2.7.30|install symfony/var-dumper v2.7.31|install symfony/var-dumper v2.7.32|install symfony/var-dumper v2.7.33|install symfony/var-dumper v2.7.3<br>4|install symfony/var-dumper v2.7.35|install symfony/var-dumper v2.7.36|install symfony/var-dumper v2.7.37|install symfony/var-dumper v2.7.38|install symfony/var-dumper v2.7.39|install symfony/var-dumper v2.7.4|install symfony/var-dumper v2.7.40|install symfony/var<br>-dumper v2.7.41|install symfony/var-dumper v2.7.42|install symfony/var-dumper v2.7.43|install symfony/var-dumper v2.7.44|install symfony/var-dumper v2.7.45|install symfony/var-dumper v2.7.46|install symfony/var-dumper v2.7.47|install symfony/var-dumper v2.7.48|inst<br>all symfony/var-dumper v2.7.49|install symfony/var-dumper v2.7.5|install symfony/var-dumper v2.7.50|install symfony/var-dumper v2.7.6|install symfony/var-dumper v2.7.7|install symfony/var-dumper v2.7.8|install symfony/var-dumper v2.7.9|install symfony/var-dumper v2<br>.8.0|install symfony/var-dumper v2.8.0-BETA1|install symfony/var-dumper v2.8.1|install symfony/var-dumper v2.8.10|install symfony/var-dumper v2.8.11|install symfony/var-dumper v2.8.12|install symfony/var-dumper v2.8.13|install symfony/var-dumper v2.8.14|install sym<br>fony/var-dumper v2.8.15|install symfony/var-dumper v2.8.16|install symfony/var-dumper v2.8.17|install symfony/var-dumper v2.8.18|install symfony/var-dumper v2.8.19|install symfony/var-dumper v2.8.2|install symfony/var-dumper v2.8.20|install symfony/var-dumper v2.8.<br>21|install symfony/var-dumper v2.8.22|install symfony/var-dumper v2.8.23|install symfony/var-dumper v2.8.24|install symfony/var-dumper v2.8.25|install symfony/var-dumper v2.8.26|install symfony/var-dumper v2.8.27|install symfony/var-dumper v2.8.28|install symfony/v<br>ar-dumper v2.8.29|install symfony/var-dumper v2.8.3|install symfony/var-dumper v2.8.30|install symfony/var-dumper v2.8.31|install symfony/var-dumper v2.8.32|install symfony/var-dumper v2.8.33|install symfony/var-dumper v2.8.34|install symfony/var-dumper v2.8.35|ins<br>tall symfony/var-dumper v2.8.36|install symfony/var-dumper v2.8.37|install symfony/var-dumper v2.8.38|install symfony/var-dumper v2.8.39|install symfony/var-dumper v2.8.4|install symfony/var-dumper v2.8.40|install symfony/var-dumper v2.8.41|install symfony/var-dump<br>er v2.8.42|install symfony/var-dumper v2.8.43|install symfony/var-dumper v2.8.44|install symfony/var-dumper v2.8.45|install symfony/var-dumper v2.8.46|install symfony/var-dumper v2.8.47|install symfony/var-dumper v2.8.48|install symfony/var-dumper v2.8.49|install s<br>ymfony/var-dumper v2.8.5|install symfony/var-dumper v2.8.6|install symfony/var-dumper v2.8.7|install symfony/var-dumper v2.8.8|install symfony/var-dumper v2.8.9|install symfony/var-dumper v3.0.0|install symfony/var-dumper v3.0.0-BETA1|install symfony/var-dumper v3.<br>0.1|install symfony/var-dumper v3.0.2|install symfony/var-dumper v3.0.3|install symfony/var-dumper v3.0.4|install symfony/var-dumper v3.0.5|install symfony/var-dumper v3.0.6|install symfony/var-dumper v3.0.7|install symfony/var-dumper v3.0.8|install symfony/var-dum<br>per v3.0.9|install symfony/var-dumper v3.1.0|install symfony/var-dumper v3.1.0-BETA1|install symfony/var-dumper v3.1.0-RC1|install symfony/var-dumper v3.1.1|install symfony/var-dumper v3.1.10|install symfony/var-dumper v3.1.2|install symfony/var-dumper v3.1.3|insta<br>ll symfony/var-dumper v3.1.4|install symfony/var-dumper v3.1.5|install symfony/var-dumper v3.1.6|install symfony/var-dumper v3.1.7|install symfony/var-dumper v3.1.8|install symfony/var-dumper v3.1.9|install symfony/var-dumper v3.2.0|install symfony/var-dumper v3.2.<br>0-BETA1|install symfony/var-dumper v3.2.0-RC1|install symfony/var-dumper v3.2.0-RC2|install symfony/var-dumper v3.2.1|install symfony/var-dumper v3.2.10|install symfony/var-dumper v3.2.11|install symfony/var-dumper v3.2.12|install symfony/var-dumper v3.2.13|install<br> symfony/var-dumper v3.2.14|install symfony/var-dumper v3.2.2|install symfony/var-dumper v3.2.3|install symfony/var-dumper v3.2.4|install symfony/var-dumper v3.2.5|install symfony/var-dumper v3.2.6|install symfony/var-dumper v3.2.7|install symfony/var-dumper v3.2.8<br>|install symfony/var-dumper v3.2.9<br>&nbsp;&nbsp;&nbsp; - drupal/devel 2.x-dev requires symfony/var-dumper ~2.7|^3 -&gt; satisfiable by symfony/var-dumper[2.7.x-dev, 2.8.x-dev, 3.0.x-dev, 3.1.x-dev, 3.2.x-dev, 3.3.x-dev, 3.4.x-dev, v2.7.0, v2.7.0-BETA1, v2.7.0-BETA2, v2.7.1, v2.7.10, v2.7.11, v2.7.12, v2.7.13, v2.7.14,<br> v2.7.15, v2.7.16, v2.7.17, v2.7.18, v2.7.19, v2.7.2, v2.7.20, v2.7.21, v2.7.22, v2.7.23, v2.7.24, v2.7.25, v2.7.26, v2.7.27, v2.7.28, v2.7.29, v2.7.3, v2.7.30, v2.7.31, v2.7.32, v2.7.33, v2.7.34, v2.7.35, v2.7.36, v2.7.37, v2.7.38, v2.7.39, v2.7.4, v2.7.40, v2.7.4<br>1, v2.7.42, v2.7.43, v2.7.44, v2.7.45, v2.7.46, v2.7.47, v2.7.48, v2.7.49, v2.7.5, v2.7.50, v2.7.6, v2.7.7, v2.7.8, v2.7.9, v2.8.0, v2.8.0-BETA1, v2.8.1, v2.8.10, v2.8.11, v2.8.12, v2.8.13, v2.8.14, v2.8.15, v2.8.16, v2.8.17, v2.8.18, v2.8.19, v2.8.2, v2.8.20, v2.8<br>.21, v2.8.22, v2.8.23, v2.8.24, v2.8.25, v2.8.26, v2.8.27, v2.8.28, v2.8.29, v2.8.3, v2.8.30, v2.8.31, v2.8.32, v2.8.33, v2.8.34, v2.8.35, v2.8.36, v2.8.37, v2.8.38, v2.8.39, v2.8.4, v2.8.40, v2.8.41, v2.8.42, v2.8.43, v2.8.44, v2.8.45, v2.8.46, v2.8.47, v2.8.48, v<br>2.8.49, v2.8.5, v2.8.6, v2.8.7, v2.8.8, v2.8.9, v3.0.0, v3.0.0-BETA1, v3.0.1, v3.0.2, v3.0.3, v3.0.4, v3.0.5, v3.0.6, v3.0.7, v3.0.8, v3.0.9, v3.1.0, v3.1.0-BETA1, v3.1.0-RC1, v3.1.1, v3.1.10, v3.1.2, v3.1.3, v3.1.4, v3.1.5, v3.1.6, v3.1.7, v3.1.8, v3.1.9, v3.2.0,<br>v3.2.0-BETA1, v3.2.0-RC1, v3.2.0-RC2, v3.2.1, v3.2.10, v3.2.11, v3.2.12, v3.2.13, v3.2.14, v3.2.2, v3.2.3, v3.2.4, v3.2.5, v3.2.6, v3.2.7, v3.2.8, v3.2.9, v3.3.0, v3.3.0-BETA1, v3.3.0-RC1, v3.3.1, v3.3.10, v3.3.11, v3.3.12, v3.3.13, v3.3.14, v3.3.15, v3.3.16, v3.3.<br>17, v3.3.18, v3.3.2, v3.3.3, v3.3.4, v3.3.5, v3.3.6, v3.3.7, v3.3.8, v3.3.9, v3.4.0, v3.4.0-BETA1, v3.4.0-BETA2, v3.4.0-BETA3, v3.4.0-BETA4, v3.4.0-RC1, v3.4.0-RC2, v3.4.1, v3.4.10, v3.4.11, v3.4.12, v3.4.13, v3.4.14, v3.4.15, v3.4.16, v3.4.17, v3.4.18, v3.4.19, v3<br>.4.2, v3.4.20, v3.4.21, v3.4.3, v3.4.4, v3.4.5, v3.4.6, v3.4.7, v3.4.8, v3.4.9].<br>&nbsp;&nbsp;&nbsp; - Can only install one of: symfony/var-dumper[3.3.x-dev, v4.2.2].<br>&nbsp;&nbsp;&nbsp; - Can only install one of: symfony/var-dumper[3.4.x-dev, v4.2.2].<br>&nbsp;&nbsp;&nbsp; - Can only install one of: symfony/var-dumper[v3.3.0, v4.2.2].<br>&nbsp;&nbsp;&nbsp; - Can only install one of: symfony/var-dumper[v3.3.0-BETA1, v4.2.2].<br>&nbsp;&nbsp;&nbsp; - Can only install one of: symfony/var-dumper[v3.3.0-RC1, v4.2.2].<br>&nbsp;&nbsp;&nbsp; - Can only install one of: symfony/var-dumper[v3.3.1, v4.2.2].<br>&nbsp;&nbsp;&nbsp; - Can only install one of: symfony/var-dumper[v3.3.10, v4.2.2].<br>&nbsp;&nbsp;&nbsp; - Can only install one of: symfony/var-dumper[v3.3.11, v4.2.2].<br>&nbsp;&nbsp;&nbsp; - Can only install one of: symfony/var-dumper[v3.3.12, v4.2.2].<br>&nbsp;&nbsp;&nbsp; - Can only install one of: symfony/var-dumper[v3.3.13, v4.2.2].<br>&nbsp;&nbsp;&nbsp; - Can only install one of: symfony/var-dumper[v3.3.14, v4.2.2].<br>&nbsp;&nbsp;&nbsp; - Can only install one of: symfony/var-dumper[v3.3.15, v4.2.2].<br>&nbsp;&nbsp;&nbsp; - Can only install one of: symfony/var-dumper[v3.3.16, v4.2.2].<br>&nbsp;&nbsp;&nbsp; - Can only install one of: symfony/var-dumper[v3.3.17, v4.2.2].<br>&nbsp;&nbsp;&nbsp; - Can only install one of: symfony/var-dumper[v3.3.18, v4.2.2].<br>&nbsp;&nbsp;&nbsp; - Can only install one of: symfony/var-dumper[v3.3.2, v4.2.2].<br>&nbsp;&nbsp;&nbsp; - Can only install one of: symfony/var-dumper[v3.3.3, v4.2.2].<br>&nbsp;&nbsp;&nbsp; - Can only install one of: symfony/var-dumper[v3.3.4, v4.2.2].<br>&nbsp;&nbsp;&nbsp; - Can only install one of: symfony/var-dumper[v3.3.5, v4.2.2].<br>&nbsp;&nbsp;&nbsp; - Can only install one of: symfony/var-dumper[v3.3.6, v4.2.2].<br>&nbsp;&nbsp;&nbsp; - Can only install one of: symfony/var-dumper[v3.3.7, v4.2.2].<br>&nbsp;&nbsp;&nbsp; - Can only install one of: symfony/var-dumper[v3.3.8, v4.2.2].<br>&nbsp;&nbsp;&nbsp; - Can only install one of: symfony/var-dumper[v3.3.9, v4.2.2].<br>&nbsp;&nbsp;&nbsp; - Can only install one of: symfony/var-dumper[v3.4.0, v4.2.2].<br>&nbsp;&nbsp;&nbsp; - Can only install one of: symfony/var-dumper[v3.4.0-BETA1, v4.2.2].<br>&nbsp;&nbsp;&nbsp; - Can only install one of: symfony/var-dumper[v3.4.0-BETA2, v4.2.2].<br>&nbsp;&nbsp;&nbsp; - Can only install one of: symfony/var-dumper[v3.4.0-BETA3, v4.2.2].<br>&nbsp;&nbsp;&nbsp; - Can only install one of: symfony/var-dumper[v3.4.0-BETA4, v4.2.2].<br>&nbsp;&nbsp;&nbsp; - Can only install one of: symfony/var-dumper[v3.4.0-RC1, v4.2.2].<br>&nbsp;&nbsp;&nbsp; - Can only install one of: symfony/var-dumper[v3.4.0-RC2, v4.2.2].<br>&nbsp;&nbsp;&nbsp; - Can only install one of: symfony/var-dumper[v3.4.1, v4.2.2].<br>&nbsp;&nbsp;&nbsp; - Can only install one of: symfony/var-dumper[v3.4.10, v4.2.2].<br>&nbsp;&nbsp;&nbsp; - Can only install one of: symfony/var-dumper[v3.4.11, v4.2.2].<br>&nbsp;&nbsp;&nbsp; - Can only install one of: symfony/var-dumper[v3.4.12, v4.2.2].<br>&nbsp;&nbsp;&nbsp; - Can only install one of: symfony/var-dumper[v3.4.13, v4.2.2].<br>&nbsp;&nbsp;&nbsp; - Can only install one of: symfony/var-dumper[v3.4.14, v4.2.2].<br>&nbsp;&nbsp;&nbsp; - Can only install one of: symfony/var-dumper[v3.4.15, v4.2.2].<br>&nbsp;&nbsp;&nbsp; - Can only install one of: symfony/var-dumper[v3.4.16, v4.2.2].<br>&nbsp;&nbsp;&nbsp; - Can only install one of: symfony/var-dumper[v3.4.17, v4.2.2].<br>&nbsp;&nbsp;&nbsp; - Can only install one of: symfony/var-dumper[v3.4.18, v4.2.2].<br>&nbsp;&nbsp;&nbsp; - Can only install one of: symfony/var-dumper[v3.4.19, v4.2.2].<br>&nbsp;&nbsp;&nbsp; - Can only install one of: symfony/var-dumper[v3.4.2, v4.2.2].<br>&nbsp;&nbsp;&nbsp; - Can only install one of: symfony/var-dumper[v3.4.20, v4.2.2].<br>&nbsp;&nbsp;&nbsp; - Can only install one of: symfony/var-dumper[v3.4.21, v4.2.2].<br>&nbsp;&nbsp;&nbsp; - Can only install one of: symfony/var-dumper[v3.4.3, v4.2.2].<br>&nbsp;&nbsp;&nbsp; - Can only install one of: symfony/var-dumper[v3.4.4, v4.2.2].<br>&nbsp;&nbsp;&nbsp; - Can only install one of: symfony/var-dumper[v3.4.5, v4.2.2].<br>&nbsp;&nbsp;&nbsp; - Can only install one of: symfony/var-dumper[v3.4.6, v4.2.2].<br>&nbsp;&nbsp;&nbsp; - Can only install one of: symfony/var-dumper[v3.4.7, v4.2.2].<br>&nbsp;&nbsp;&nbsp; - Can only install one of: symfony/var-dumper[v3.4.8, v4.2.2].<br>&nbsp;&nbsp;&nbsp; - Can only install one of: symfony/var-dumper[v3.4.9, v4.2.2].<br>&nbsp;&nbsp;&nbsp; - Installation request for symfony/var-dumper (locked at v4.2.2) -&gt; satisfiable by symfony/var-dumper[v4.2.2].<br><br><br>Installation failed, reverting ./composer.json to its original content.</pre>