Fatal error: Uncaught Error: Class "Symfony\Component\Console\Event\ConsoleEvent" not found in D:\Apache24\www\qilu_sap\back-end\vendor\symfony\console\Event\ConsoleErrorEvent.php:23 Stack trace: #0 {main} thrown in D:\Apache24\www\qilu_sap\back-end\vendor\symfony\console\Event\ConsoleErrorEvent.php on line 23