Fatal error: Uncaught Error: Interface 'Symfony\Component\EventDispatcher\EventSubscriberInterface' not found in /home/itscm/dev.its.cm/webserivesits/vendor/symfony/security-bundle/EventListener/VoteListener.php:25 Stack trace: #0 {main} thrown in /home/itscm/dev.its.cm/webserivesits/vendor/symfony/security-bundle/EventListener/VoteListener.php on line 25