Fatal error: Uncaught Error: Class 'Symfony\Component\HttpKernel\Controller\ControllerResolver' not found in E:\xampp\htdocs\www\key1\vendor\symfony\http-kernel\Controller\ContainerControllerResolver.php:25 Stack trace: #0 {main} thrown in E:\xampp\htdocs\www\key1\vendor\symfony\http-kernel\Controller\ContainerControllerResolver.php on line 25