Fatal error: Uncaught Error: Class "Symfony\Component\EventDispatcher\Event" not found in /disk/www/jkdev.zo/Git-Package-Management/core/components/gpm/vendor/symfony/console/Event/ConsoleEvent.php:24 Stack trace: #0 {main} thrown in /disk/www/jkdev.zo/Git-Package-Management/core/components/gpm/vendor/symfony/console/Event/ConsoleEvent.php on line 24