Fatal error: Uncaught Error: Interface "Drupal\image\ImageEffectInterface" not found in /home/www/drupal8/test/core/modules/image/src/ConfigurableImageEffectInterface.php:17 Stack trace: #0 {main} thrown in /home/www/drupal8/test/core/modules/image/src/ConfigurableImageEffectInterface.php on line 17