Fatal error: Uncaught Error: Interface "Drupal\Component\Annotation\AnnotationInterface" not found in /home/www/drupal8/test/core/lib/Drupal/Component/Annotation/AnnotationBase.php:8 Stack trace: #0 {main} thrown in /home/www/drupal8/test/core/lib/Drupal/Component/Annotation/AnnotationBase.php on line 8