Fatal error: Uncaught Error: Interface "Symfony\Component\EventDispatcher\EventSubscriberInterface" not found in C:\svn\conexerp\vendor\symfony\http-kernel\EventListener\AddRequestFormatsListener.php:25 Stack trace: #0 {main} thrown in C:\svn\conexerp\vendor\symfony\http-kernel\EventListener\AddRequestFormatsListener.php on line 25