Fatal error: Uncaught Error: Interface "Drupal\Core\PageCache\RequestPolicyInterface" not found in /home/www/drupal8/test/core/modules/toolbar/src/PageCache/AllowToolbarPath.php:14 Stack trace: #0 {main} thrown in /home/www/drupal8/test/core/modules/toolbar/src/PageCache/AllowToolbarPath.php on line 14