Fatal error: Uncaught Error: Interface "Symfony\Component\EventDispatcher\EventSubscriberInterface" not found in /home/ldt/public_html/canvas/udoit/vendor/symfony/web-profiler-bundle/EventListener/WebDebugToolbarListener.php:38 Stack trace: #0 {main} thrown in /home/ldt/public_html/canvas/udoit/vendor/symfony/web-profiler-bundle/EventListener/WebDebugToolbarListener.php on line 38