Fatal error: Uncaught Error: Class "Drupal\system\Plugin\ImageToolkit\Operation\gd\GDImageToolkitOperationBase" not found in /home/www/drupal8/test/core/modules/system/src/Plugin/ImageToolkit/Operation/gd/CreateNew.php:18 Stack trace: #0 {main} thrown in /home/www/drupal8/test/core/modules/system/src/Plugin/ImageToolkit/Operation/gd/CreateNew.php on line 18