>>> [!note] Migrated issue <!-- Drupal.org comment --> <!-- Migrated from issue #2310339. --> Reported by: [joelpittet](https://www.drupal.org/user/160302) >>> <h3 id="summary-problem-motivation">Problem/Motivation</h3> <p>Giving this module a test spin. Seems I can't get web profiler to work with d8 head at the moment. Dev or alpha13. </p> <p>This message keeps coming up in the command line after enabling webprofiler</p> <pre>drush cr &amp;&amp; drush dis webprofiler &amp;&amp; d en webprofiler<br>Drush command terminated abnormally due to an unrecoverable error.&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp; [error]<br>Symfony\Component\DependencyInjection\Exception\InvalidArgumentException: The service definition "event_dispatcher" does not exist. in Symfony\Component\DependencyInjection\ContainerBuilder-&gt;getDefinition() (line 873 of /core/vendor/symfony/dependency-injection/Symfony/Component/DependencyInjection/ContainerBuilder.php).</pre><p>Could be the state of HEAD atm, but thought I would share as I don't know much about that event dispatcher service.</p> <h3 id="summary-proposed-resolution">Proposed resolution</h3> <p>tbd</p> <h3 id="summary-remaining-tasks">Remaining tasks</h3> <p>tbd</p> <h3 id="summary-ui-changes">User interface changes</h3> <p>n/a</p> <h3 id="summary-api-changes">API changes</h3> <p>tbd</p>