Fatal error: Uncaught Error: Class 'Doctrine\Common\EventManager' not found in /home/benjamincb/demos/acdg-site/vendor/symfony/doctrine-bridge/ContainerAwareEventManager.php:24 Stack trace: #0 {main} thrown in /home/benjamincb/demos/acdg-site/vendor/symfony/doctrine-bridge/ContainerAwareEventManager.php on line 24