Fatal error: Uncaught Error: Class 'Symfony\Component\Config\Definition\Exception\Exception' not found in C:\laragon\www\silkroad-laravel\vendor\symfony\config\Definition\Exception\UnsetKeyException.php:20 Stack trace: #0 {main} thrown in C:\laragon\www\silkroad-laravel\vendor\symfony\config\Definition\Exception\UnsetKeyException.php on line 20