Fatal error: Uncaught Error: Class "Symfony\Component\Process\Exception\ProcessFailedException" not found in D:\programs\xampp\htdocs\blog\vendor\symfony\process\Exception\ProcessStartFailedException.php:19 Stack trace: #0 {main} thrown in D:\programs\xampp\htdocs\blog\vendor\symfony\process\Exception\ProcessStartFailedException.php on line 19