Fatal error: Uncaught Error: Interface 'Symfony\Component\Routing\Exception\ExceptionInterface' not found in /home/soh-works/www/websoket-sample/vendor/symfony/routing/Exception/RouteNotFoundException.php:19 Stack trace: #0 {main} thrown in /home/soh-works/www/websoket-sample/vendor/symfony/routing/Exception/RouteNotFoundException.php on line 19