Fatal error: Uncaught Error: Interface 'Symfony\Component\EventDispatcher\EventSubscriberInterface' not found in /var/www/html/tmp/contrib/entity/src/EventSubscriber/EntityDuplicateSubscriber.php:10 Stack trace: #0 {main} thrown in /var/www/html/tmp/contrib/entity/src/EventSubscriber/EntityDuplicateSubscriber.php on line 10