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我在本地工作站上使用 Visual Studio 2012，连接到托管在 Amazon 的 EC2 云（Windows 2008 Server R2）中的测试控制器。我已将 EC2 弹性 IP 添加到我的 hosts 文件中，我可以使用“管理控制器”功能并查看代理是否在线。

我的本地 Visual Studio 使用与测试控制器服务帐户相同的用户名和密码运行（通过 runas）。

当我尝试运行负载测试时，出现以下错误：

未能将测试运行 'xxx' 排队：请求的名称有效，但未找到请求类型的数据。

在我的本地事件日志中，写入了以下错误。这似乎是一个 DNS 解析问题，但由于我能够连接到控制器，我不知道还要检查什么。

(devenv.exe, PID 9160, Thread 18) ControllerProxy: Queue test run error: System.Net.Sockets.SocketException (0x80004005): The requested name is valid, but no data of the requested type was found

Server stack trace: 
   at System.Net.Dns.GetAddrInfo(String name)
   at System.Net.Dns.InternalGetHostByName(String hostName, Boolean includeIPv6)
   at System.Net.Dns.GetHostAddresses(String hostNameOrAddress)
   at System.Runtime.Remoting.Channels.RemoteConnection.CreateNewSocket()
   at System.Runtime.Remoting.Channels.RemoteConnection.GetSocket()
   at System.Runtime.Remoting.Channels.SocketCache.GetSocket(String machinePortAndSid, Boolean openNew)
   at System.Runtime.Remoting.Channels.Tcp.TcpClientTransportSink.SendRequestWithRetry(IMessage msg, ITransportHeaders requestHeaders, Stream requestStream)
   at System.Runtime.Remoting.Channels.Tcp.TcpClientTransportSink.ProcessMessage(IMessage msg, ITransportHeaders requestHeaders, Stream requestStream, ITransportHeaders& responseHeaders, Stream& responseStream)
   at System.Runtime.Remoting.Channels.BinaryClientFormatterSink.SyncProcessMessage(IMessage msg)

Exception rethrown at [0]: 
   at System.Runtime.Remoting.Proxies.RealProxy.HandleReturnMessage(IMessage reqMsg, IMessage retMsg)
   at System.Runtime.Remoting.Proxies.RealProxy.PrivateInvoke(MessageData& msgData, Int32 type)
   at Microsoft.VisualStudio.TestTools.Common.FileCopyService.get_DeploymentFlags()
   at Microsoft.VisualStudio.TestTools.Controller.ControllerExecution.<StartTestRun>b__d(FileCopyService fileCopyService)
   at Microsoft.VisualStudio.TestTools.Execution.RemoteObjectContainer`1.InvokeAsRemoteUser(Action`1 invoke)
   at Microsoft.VisualStudio.TestTools.Controller.ControllerExecution.StartTestRun(TestRun testRun, RemoteObjectContainer`1 fileCopyServiceContainer, RemoteObjectContainer`1 defaultListenerContainer)
   at Microsoft.VisualStudio.TestTools.Controller.ControllerObject.QueueTestRun(TestRun testRun, FileCopyService fileCopyService, IControllerEvents eventHandler)
   at System.Runtime.Remoting.Messaging.StackBuilderSink._PrivateProcessMessage(IntPtr md, Object[] args, Object server, Object[]& outArgs)
   at System.Runtime.Remoting.Messaging.StackBuilderSink.SyncProcessMessage(IMessage msg)

Exception rethrown at [1]: 
   at System.Runtime.Remoting.Proxies.RealProxy.HandleReturnMessage(IMessage reqMsg, IMessage retMsg)
   at System.Runtime.Remoting.Proxies.RealProxy.PrivateInvoke(MessageData& msgData, Int32 type)
   at Microsoft.VisualStudio.TestTools.Controller.IControllerExecution.QueueTestRun(TestRun testRun, FileCopyService fileCopyService, IControllerEvents eventHandler)
   at Microsoft.VisualStudio.TestTools.TestManagement.ControllerProxy.QueueTestRunWorker(Object state)
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