Fatal error: Uncaught Error: Interface "Drupal\Core\PageCache\ResponsePolicyInterface" not found in /home/www/drupal8/test/core/modules/image/src/PageCache/DenyPrivateImageStyleDownload.php:16 Stack trace: #0 {main} thrown in /home/www/drupal8/test/core/modules/image/src/PageCache/DenyPrivateImageStyleDownload.php on line 16