Fatal error: Uncaught Error: Interface "Symfony\Component\EventDispatcher\EventSubscriberInterface" not found in D:\Application\www\E-Tracking\vendor\symfony\http-kernel\EventListener\DebugHandlersListener.php:30 Stack trace: #0 {main} thrown in D:\Application\www\E-Tracking\vendor\symfony\http-kernel\EventListener\DebugHandlersListener.php on line 30