Fatal error: Uncaught Error: Interface "Symfony\Component\Form\RequestHandlerInterface" not found in /home/ldt/public_html/canvas/udoit/vendor/symfony/form/Extension/HttpFoundation/HttpFoundationRequestHandler.php:29 Stack trace: #0 {main} thrown in /home/ldt/public_html/canvas/udoit/vendor/symfony/form/Extension/HttpFoundation/HttpFoundationRequestHandler.php on line 29