Fatal error: Uncaught Error: Class "Symfony\Component\Console\Command\Command" not found in C:\xampp\htdocs\slip\Warranty-UploadFile\vendor\symfony\console\SingleCommandApplication.php:21 Stack trace: #0 {main} thrown in C:\xampp\htdocs\slip\Warranty-UploadFile\vendor\symfony\console\SingleCommandApplication.php on line 21