Fatal error: Uncaught Error: Interface "Symfony\Component\EventDispatcher\EventSubscriberInterface" not found in /home/appacfrykg/www-preprod/src/EventSubscriber/PhotoThumbnailSubscriber.php:10 Stack trace: #0 {main} thrown in /home/appacfrykg/www-preprod/src/EventSubscriber/PhotoThumbnailSubscriber.php on line 10