IIOP.NET与CORBA相关问题

[lt_xs]

string host = "localhost";

 int port = 1177;

 // 建立并注册IIOP通道，与服务器corba进行通信 
IiopClientChannel channel = new IiopClientChannel(); 
ChannelServices.RegisterChannel(channel,false); 
 //本地corba初始化 
CorbaInit init = CorbaInit.GetInit(); 
NamingContext nameService = init.GetNameService(host, port);

 //根据对象绑定的服务名获取远程对象 
 NameComponent[] nameMz = new NameComponent[] { new NameComponent("test", "") };

 intTest mz = (intTest)nameService.resolve(nameMz);--到这里就提示异常了

Console.WriteLine(); 


            } 
            catch (Exception ex) 
            { 
                Console.WriteLine("exception: " + ex); 
            } 

C#调用异常：
CORBA system exception : omg.org.CORBA.TRANSIENT [Unable to connect to target.] , completed: Completed_No minor: 4000