Fatal error: Uncaught Error: Interface "Ratchet\MessageComponentInterface" not found in /var/www/html/mun/vendor/cboden/ratchet/tests/helpers/Ratchet/NullComponent.php:8
Stack trace:
#0 {main}
thrown in /var/www/html/mun/vendor/cboden/ratchet/tests/helpers/Ratchet/NullComponent.php on line 8