Fatal error: Uncaught Error: Class "Symfony\Component\Console\Event\ConsoleEvent" not found in /home/stackloom/public_html/idea/vendor/symfony/console/Event/ConsoleErrorEvent.php:23 Stack trace: #0 {main} thrown in /home/stackloom/public_html/idea/vendor/symfony/console/Event/ConsoleErrorEvent.php on line 23