Fatal error: Uncaught Error: Class "Symfony\Component\HttpFoundation\RequestStack" not found in C:\xampp\htdocs\slip\Warranty-UploadFile\vendor\symfony\http-kernel\Debug\VirtualRequestStack.php:24 Stack trace: #0 {main} thrown in C:\xampp\htdocs\slip\Warranty-UploadFile\vendor\symfony\http-kernel\Debug\VirtualRequestStack.php on line 24