Fatal error: Uncaught Error: Interface "Ratchet\RFC6455\Messaging\FrameInterface" not found in C:\xampp\htdocs\siscolasmdp\vendor\ratchet\rfc6455\src\Messaging\Frame.php:4 Stack trace: #0 {main} thrown in C:\xampp\htdocs\siscolasmdp\vendor\ratchet\rfc6455\src\Messaging\Frame.php on line 4