Fatal error: Uncaught Error: Class "Symfony\Component\HttpKernel\Event\GetResponseEvent" not found in D:\Application\www\E-Tracking\vendor\symfony\http-kernel\Event\GetResponseForExceptionEvent.php:30 Stack trace: #0 {main} thrown in D:\Application\www\E-Tracking\vendor\symfony\http-kernel\Event\GetResponseForExceptionEvent.php on line 30