Fatal error: Uncaught Error: Class 'Symfony\Component\Console\Event\ConsoleEvent' not found in C:\xampp\htdocs\rabani-laravel-firebird\vendor\symfony\console\Event\ConsoleSignalEvent.php:21 Stack trace: #0 {main} thrown in C:\xampp\htdocs\rabani-laravel-firebird\vendor\symfony\console\Event\ConsoleSignalEvent.php on line 21