>>> [!note] Migrated issue <!-- Drupal.org comment --> <!-- Migrated from issue #3521582. --> Reported by: [pwolanin](https://www.drupal.org/user/49851) Related to !35 >>> <h3 id="summary-problem-motivation">Problem/Motivation</h3> <p>When trying to use the module with Drupal 9 (which is listed as supported) I get a fatal error with the latest release of 8x-1.x</p> <pre>PHP Fatal error:&nbsp; Uncaught Error: Class "Drupal\Component\Utility\DeprecationHelper" not found in /var/www/drupal/web/modules/drupal/og/og.views.inc:36<br>Stack trace:<br>#0 [internal function]: og_field_views_data()</pre><h3 id="summary-proposed-resolution">Proposed resolution</h3> <p>Fix this bit of code so it works also on 9</p> <p>run CI on Drupal 9 also</p> <h3 id="summary-remaining-tasks">Remaining tasks</h3> <p>do it</p>