Fatal error: Uncaught Error: Interface 'Doctrine\Common\EventSubscriber' not found in /home/lafaamicps/www/symfony/vendor/sonata-project/media-bundle/Listener/BaseMediaEventSubscriber.php:21 Stack trace: #0 {main} thrown in /home/lafaamicps/www/symfony/vendor/sonata-project/media-bundle/Listener/BaseMediaEventSubscriber.php on line 21