Fatal error: Uncaught Error: Class 'Symfony\Component\HttpKernel\Controller\ContainerControllerResolver' not found in C:\xampp\htdocs\plugins\Symfony\Bundle\FrameworkBundle\Controller\ControllerResolver.php:21 Stack trace: #0 {main} thrown in C:\xampp\htdocs\plugins\Symfony\Bundle\FrameworkBundle\Controller\ControllerResolver.php on line 21