Fatal error: Uncaught Error: Class "Symfony\Component\HttpFoundation\ParameterBag" not found in C:\xampp\htdocs\m-admin\vendor\symfony\http-foundation\FileBag.php:22 Stack trace: #0 {main} thrown in C:\xampp\htdocs\m-admin\vendor\symfony\http-foundation\FileBag.php on line 22