Fatal error: Uncaught Error: Class "Symfony\Component\Console\Event\ConsoleEvent" not found in /home/kompapar/www/katelkonpa/katelkonpa-app/vendor/symfony/console/Event/ConsoleAlarmEvent.php:18 Stack trace: #0 {main} thrown in /home/kompapar/www/katelkonpa/katelkonpa-app/vendor/symfony/console/Event/ConsoleAlarmEvent.php on line 18