Fatal error: Uncaught Error: Interface "Symfony\Component\EventDispatcher\EventSubscriberInterface" not found in I:\www\picman\vendor\symfony\web-profiler-bundle\EventListener\WebDebugToolbarListener.php:38 Stack trace: #0 {main} thrown in I:\www\picman\vendor\symfony\web-profiler-bundle\EventListener\WebDebugToolbarListener.php on line 38