Fatal error: Uncaught Error: Interface "Drupal\Core\Entity\Display\EntityDisplayInterface" not found in /home/www/drupal8/test/core/lib/Drupal/Core/Entity/Display/EntityViewDisplayInterface.php:10
Stack trace:
#0 {main}
thrown in /home/www/drupal8/test/core/lib/Drupal/Core/Entity/Display/EntityViewDisplayInterface.php on line 10