Fatal error: Uncaught Error: Class 'Symfony\Component\Console\Exception\RuntimeException' not found in D:\xampp\htdocs\psp\backend\vendor\symfony\console\Exception\MissingInputException.php:19 Stack trace: #0 {main} thrown in D:\xampp\htdocs\psp\backend\vendor\symfony\console\Exception\MissingInputException.php on line 19