Fatal error: Uncaught Error: Interface 'Symfony\Component\EventDispatcher\EventDispatcherInterface' not found in D:\xampp7\htdocs\www\nbkm\show_ir\vendor\symfony\event-dispatcher\Debug\TraceableEventDispatcher.php:30 Stack trace: #0 {main} thrown in D:\xampp7\htdocs\www\nbkm\show_ir\vendor\symfony\event-dispatcher\Debug\TraceableEventDispatcher.php on line 30