我尝试创建一个简单的WCF应用程序,我没有更改任何现有的默认配置。我已经尝试使用由svcutil.exe生成的TestClient来使用该服务。它显示了一条错误消息,我尝试将端点设置为localhost:"Could not find default endpoint element that references contract 'IAuthenticationService' in the ServiceModel client configuration section. This might be because no configuration file w