private SofaRpcException cannotFoundServiceMethod(String appName, String serviceName, String methodName) {
        String errorMsg = LogCodes.getLog(
            LogCodes.ERROR_PROVIDER_SERVICE_METHOD_CANNOT_FOUND, serviceName, methodName);
        LOGGER.errorWithApp(appName, errorMsg);
        return new SofaRpcException(RpcErrorType.SERVER_NOT_FOUND_INVOKER, errorMsg);
    }
private SofaRpcException cannotFoundServiceMethod ( String appName , String serviceName , String methodName ) { String errorMsg = LogCodes . getLog ( LogCodes . ERROR_PROVIDER_SERVICE_METHOD_CANNOT_FOUND , serviceName , methodName ) ; LOGGER . errorWithApp ( appName , errorMsg ) ; return new SofaRpcException ( RpcErrorType . SERVER_NOT_FOUND_INVOKER , errorMsg ) ; }
找不到服务方法

@param appName     应用
@param serviceName 服务
@param methodName  方法名
@return 找不到服务方法的异常