Fatal error: Uncaught Error: Interface 'Symfony\Component\EventDispatcher\EventSubscriberInterface' not found in /home/prooyavi/laravel/laravel/vendor/symfony/http-kernel/EventListener/ErrorListener.php:31 Stack trace: #0 {main} thrown in /home/prooyavi/laravel/laravel/vendor/symfony/http-kernel/EventListener/ErrorListener.php on line 31