Issue #1292284 by ParisLiakos, RobLoach, karschsp: Require 'type' key in .info.yml files.

core/includes/install.core.inc

@@ -1271,6 +1271,10 @@ function install_select_profile_form($form, &$form_state, $install_state) {
 
   foreach ($install_state['profiles'] as $profile) {
     $details = install_profile_info($profile->name);
+    // Skip this extension if its type is not profile.
+    if (!isset($details['type']) || $details['type'] != 'profile') {
+      continue;
+    }
     // Don't show hidden profiles. This is used by to hide the testing profile,
     // which only exists to speed up test runs.
     if ($details['hidden'] === TRUE) {

core/modules/action/action.info.yml

 name: Actions
+type: module
 description: 'Perform tasks on specific events triggered within the system.'
 package: Core
 version: VERSION

core/modules/action/tests/action_bulk_test/action_bulk_test.info.yml

 name: 'Action bulk form test'
+type: module
 description: 'Support module for action bulk form testing.'
 package: Testing
 version: VERSION

core/modules/action/tests/action_loop_test/action_loop_test.info.yml

 name: 'Action loop test'
+type: module
 description: 'Support module for action loop testing.'
 package: Testing
 version: VERSION

core/modules/aggregator/aggregator.info.yml

 name: Aggregator
+type: module
 description: 'Aggregates syndicated content (RSS, RDF, and Atom feeds) from external sources.'
 package: Core
 version: VERSION

core/modules/aggregator/tests/aggregator_test.info.yml

 name: 'Aggregator module tests'
+type: module
 description: 'Support module for aggregator related testing.'
 package: Testing
 version: VERSION

core/modules/ban/ban.info.yml

 name: Ban
+type: module
 description: 'Enables banning of IP addresses.'
 package: Core
 version: VERSION

core/modules/block/block.info.yml

 name: Block
+type: module
 description: 'Controls the visual building blocks a page is constructed with. Blocks are boxes of content rendered into an area, or region, of a web page.'
 package: Core
 version: VERSION

core/modules/block/custom_block/custom_block.info.yml

 name: 'Custom Block'
+type: module
 description: 'Allows the creation of custom blocks through the user interface.'
 package: Core
 version: VERSION

core/modules/block/custom_block/tests/modules/custom_block_test/custom_block_test.info.yml

 name: "Custom Block module tests"
+type: module
 description: "Support module for custom block related testing."
 package: Testing
 core: 8.x

core/modules/block/tests/block_test.info.yml

 name: 'Block test'
+type: module
 description: 'Provides test blocks.'
 package: Testing
 version: VERSION

core/modules/block/tests/block_test_views/block_test_views.info.yml

 name: 'Block test views'
+type: module
 description: 'Provides a view and block to test block displays in views.'
 package: Core
 version: VERSION

core/modules/block/tests/themes/block_test_theme/block_test_theme.info.yml

 name: 'Block test theme'
+type: theme
 description: 'Theme for testing the block system'
 core: 8.x
 hidden: true

core/modules/book/book.info.yml

 name: Book
+type: module
 description: 'Allows users to create and organize related content in an outline.'
 package: Core
 version: VERSION

core/modules/breakpoint/breakpoint.info.yml

 name: Breakpoint
+type: module
 description: 'Manage breakpoints and breakpoint groups for responsive designs.'
 package: Core
 version: VERSION

core/modules/breakpoint/tests/breakpoint_theme_test.info.yml

 name: 'Breakpoint theme test'
+type: module
 description: 'Test breakpoints provided by themes'
 package: Other
 core: 8.x

core/modules/breakpoint/tests/themes/breakpoint_test_theme/breakpoint_test_theme.info.yml

 name: 'Breakpoint test theme'
+type: theme
 description: 'Test theme for breakpoint.'
 core: 8.x
 'base theme': bartik

core/modules/ckeditor/ckeditor.info.yml

 name: CKEditor
+type: module
 description: "WYSIWYG editing for rich text fields using CKEditor."
 package: Core
 core: 8.x

core/modules/ckeditor/tests/modules/ckeditor_test.info.yml

 name: CKEditor test
+type: module
 description: Support module for the CKEditor module tests.
 core: 8.x
 package: Testing

core/modules/color/color.info.yml

 name: Color
+type: module
 description: 'Allows administrators to change the color scheme of compatible themes.'
 package: Core
 version: VERSION