Fatal error: Uncaught Error: Class "Workerman\Connection\ConnectionInterface" not found in E:\www\catalog_frey\qgmvc\v1.0\workerman\Connection\TcpConnection.php:23 Stack trace: #0 {main} thrown in E:\www\catalog_frey\qgmvc\v1.0\workerman\Connection\TcpConnection.php on line 23