Fatal error: Uncaught Error: Interface 'Ratchet\WebSocket\WsServerInterface' not found in C:\xampp\htdocs\datosgr\cons\vendor\cboden\ratchet\src\Ratchet\Wamp\TopicManager.php:6 Stack trace: #0 {main} thrown in C:\xampp\htdocs\datosgr\cons\vendor\cboden\ratchet\src\Ratchet\Wamp\TopicManager.php on line 6