Fatal error: Uncaught Error: Interface 'Doctrine\Common\EventSubscriber' not found in /home/itscm/dev.its.cm/webserivesits/vendor/friendsofsymfony/user-bundle/Doctrine/UserListener.php:30 Stack trace: #0 {main} thrown in /home/itscm/dev.its.cm/webserivesits/vendor/friendsofsymfony/user-bundle/Doctrine/UserListener.php on line 30