Fatal error: Uncaught Error: Class "Symfony\Component\HttpKernel\Controller\ControllerResolver" not found in D:\Application\www\Training\vendor\symfony\http-kernel\Controller\ContainerControllerResolver.php:23 Stack trace: #0 {main} thrown in D:\Application\www\Training\vendor\symfony\http-kernel\Controller\ContainerControllerResolver.php on line 23