Fatal error: Uncaught Error: Interface "Drupal\Core\Entity\Display\EntityDisplayInterface" not found in /home/www/drupal8/test/core/modules/field_layout/src/Display/EntityDisplayWithLayoutInterface.php:11 Stack trace: #0 {main} thrown in /home/www/drupal8/test/core/modules/field_layout/src/Display/EntityDisplayWithLayoutInterface.php on line 11