Fatal error: Uncaught Error: Class "Symfony\Component\Console\Output\Output" not found in C:\xampp\htdocs\slip\Warranty-UploadFile\vendor\symfony\console\Output\BufferedOutput.php:17 Stack trace: #0 {main} thrown in C:\xampp\htdocs\slip\Warranty-UploadFile\vendor\symfony\console\Output\BufferedOutput.php on line 17