Fatal error: Uncaught Error: Class 'Symfony\Component\HttpFoundation\RequestMatcher' not found in C:\xampp\htdocs\admin\vendor\symfony\http-foundation\ExpressionRequestMatcher.php:21 Stack trace: #0 {main} thrown in C:\xampp\htdocs\admin\vendor\symfony\http-foundation\ExpressionRequestMatcher.php on line 21