Fatal error: Uncaught Error: Class "Symfony\Component\EventDispatcher\Event" not found in /home/commyhos/public_html/drupaldistribution.com.myhost.id/dd10opignolms/vendor/symfony/console/Event/ConsoleEvent.php:24 Stack trace: #0 {main} thrown in /home/commyhos/public_html/drupaldistribution.com.myhost.id/dd10opignolms/vendor/symfony/console/Event/ConsoleEvent.php on line 24