Botframework 由于QnAMaker连接问题，Bot未响应Bot Framework Emulator中的消息

我的聊天机器人使用QnAMaker来回答用户的问题。最近，当我在Bot框架仿真器中进行测试时，这已经停止工作。然而，该机器人在网络聊天中运行良好。我相信，当我试图从我的QnAMaker知识库中得出答案时，问题就会出现：

var response = await botServices.QnAServices[QnAMakerName].GetAnswersAsync(stepContext.Context, qnaMakerOptions);

这是我在控制台中得到的输出：

fail: Microsoft.BotBuilderSamples.QnABot[0]
      Exception caught : System.Threading.Tasks.TaskCanceledException: The operation was canceled. ---> System.IO.IOException: Unable to read data from the transport connection: The I/O operation has been aborted because of either a thread exit or an application request. ---> System.Net.Sockets.SocketException: The I/O operation has been aborted because of either a thread exit or an application request
         --- End of inner exception stack trace ---
         at System.Net.Sockets.Socket.AwaitableSocketAsyncEventArgs.ThrowException(SocketError error)
         at System.Net.Sockets.Socket.AwaitableSocketAsyncEventArgs.GetResult(Int16 token)
         at System.Net.FixedSizeReader.ReadPacketAsync(Stream transport, AsyncProtocolRequest request)
         at System.Net.Security.SslState.ThrowIfExceptional()
         at System.Net.Security.SslState.InternalEndProcessAuthentication(LazyAsyncResult lazyResult)
         at System.Net.Security.SslState.EndProcessAuthentication(IAsyncResult result)
         at System.Net.Security.SslStream.EndAuthenticateAsClient(IAsyncResult asyncResult)
         at System.Net.Security.SslStream.<>c.<AuthenticateAsClientAsync>b__47_1(IAsyncResult iar)
         at System.Threading.Tasks.TaskFactory`1.FromAsyncCoreLogic(IAsyncResult iar, Func`2 endFunction, Action`1 endAction, Task`1 promise, Boolean requiresSynchronization)
      --- End of stack trace from previous location where exception was thrown ---
         at System.Net.Http.ConnectHelper.EstablishSslConnectionAsyncCore(Stream stream, SslClientAuthenticationOptions sslOptions, CancellationToken cancellationToken)
         --- End of inner exception stack trace ---
         at System.Net.Http.ConnectHelper.EstablishSslConnectionAsyncCore(Stream stream, SslClientAuthenticationOptions sslOptions, CancellationToken cancellationToken)
         at System.Threading.Tasks.ValueTask`1.get_Result()
         at System.Net.Http.HttpConnectionPool.CreateConnectionAsync(HttpRequestMessage request, CancellationToken cancellationToken)
         at System.Threading.Tasks.ValueTask`1.get_Result()
         at System.Net.Http.HttpConnectionPool.WaitForCreatedConnectionAsync(ValueTask`1 creationTask)
         at System.Threading.Tasks.ValueTask`1.get_Result()
         at System.Net.Http.HttpConnectionPool.SendWithRetryAsync(HttpRequestMessage request, Boolean doRequestAuth, CancellationToken cancellationToken)
         at System.Net.Http.RedirectHandler.SendAsync(HttpRequestMessage request, CancellationToken cancellationToken)
         at System.Net.Http.HttpClient.FinishSendAsyncBuffered(Task`1 sendTask, HttpRequestMessage request, CancellationTokenSource cts, Boolean disposeCts)
         at Microsoft.Bot.Builder.AI.QnA.HttpRequestUtils.ExecuteHttpRequestAsync(String requestUrl, String payloadBody, QnAMakerEndpoint endpoint) in d:\a\1\s\libraries\Microsoft.Bot.Builder.AI.QnA\Utils\HttpRequestUtils.cs:line 64
         at Microsoft.Bot.Builder.AI.QnA.GenerateAnswerUtils.QueryQnaServiceAsync(Activity messageActivity, QnAMakerOptions options) in d:\a\1\s\libraries\Microsoft.Bot.Builder.AI.QnA\Utils\GenerateAnswerUtils.cs:line 212
         at Microsoft.Bot.Builder.AI.QnA.GenerateAnswerUtils.GetAnswersRawAsync(ITurnContext turnContext, IMessageActivity messageActivity, QnAMakerOptions options) in d:\a\1\s\libraries\Microsoft.Bot.Builder.AI.QnA\Utils\GenerateAnswerUtils.cs:line 87
         at Microsoft.Bot.Builder.AI.QnA.QnAMaker.GetAnswersRawAsync(ITurnContext turnContext, QnAMakerOptions options, Dictionary`2 telemetryProperties, Dictionary`2 telemetryMetrics) in d:\a\1\s\libraries\Microsoft.Bot.Builder.AI.QnA\QnAMaker.cs:line 198
         at Microsoft.Bot.Builder.AI.QnA.QnAMaker.GetAnswersAsync(ITurnContext turnContext, QnAMakerOptions options, Dictionary`2 telemetryProperties, Dictionary`2 telemetryMetrics) in d:\a\1\s\libraries\Microsoft.Bot.Builder.AI.QnA\QnAMaker.cs:line 158
         at X.Dialogs.QnAMakerDialog.CallGenerateAnswer(WaterfallStepContext stepContext, CancellationToken cancellationToken) in C:\Users\X\Desktop\X\Dialogs\QnAMakerDialog.cs:line 239
         at Microsoft.Bot.Builder.Dialogs.WaterfallDialog.OnStepAsync(WaterfallStepContext stepContext, CancellationToken cancellationToken) in d:\a\1\s\libraries\Microsoft.Bot.Builder.Dialogs\WaterfallDialog.cs:line 175
         at Microsoft.Bot.Builder.Dialogs.WaterfallDialog.RunStepAsync(DialogContext dc, Int32 index, DialogReason reason, Object result, CancellationToken cancellationToken) in d:\a\1\s\libraries\Microsoft.Bot.Builder.Dialogs\WaterfallDialog.cs:line 197
         at Microsoft.Bot.Builder.Dialogs.WaterfallDialog.BeginDialogAsync(DialogContext dc, Object options, CancellationToken cancellationToken) in d:\a\1\s\libraries\Microsoft.Bot.Builder.Dialogs\WaterfallDialog.cs:line 82
         at Microsoft.Bot.Builder.Dialogs.DialogContext.BeginDialogAsync(String dialogId, Object options, CancellationToken cancellationToken) in d:\a\1\s\libraries\Microsoft.Bot.Builder.Dialogs\DialogContext.cs:line 170
         at Microsoft.BotBuilderSamples.QnABot.DispatchToTopIntentAsync(ITurnContext turnContext, IList`1 intent, RecognizerResult recognizerResult, CancellationToken cancellationToken) in C:\Users\X\Desktop\X\QnAMaker\QnABot.cs:line 171
         at Microsoft.BotBuilderSamples.QnABot.OnTurnAsync(ITurnContext turnContext, CancellationToken cancellationToken) in C:\Users\X\Desktop\X\QnAMaker\QnABot.cs:line 136
         at Microsoft.Bot.Builder.BotFrameworkAdapter.TenantIdWorkaroundForTeamsMiddleware.OnTurnAsync(ITurnContext turnContext, NextDelegate next, CancellationToken cancellationToken) in d:\a\1\s\libraries\Microsoft.Bot.Builder\BotFrameworkAdapter.cs:line 1252
         at Microsoft.Bot.Builder.MiddlewareSet.ReceiveActivityWithStatusAsync(ITurnContext turnContext, BotCallbackHandler callback, CancellationToken cancellationToken) in d:\a\1\s\libraries\Microsoft.Bot.Builder\MiddlewareSet.cs:line 55
         at Microsoft.Bot.Builder.BotAdapter.RunPipelineAsync(ITurnContext turnContext, BotCallbackHandler callback, CancellationToken cancellationToken) in d:\a\1\s\libraries\Microsoft.Bot.Builder\BotAdapter.cs:line 200

fail:Microsoft.BotBuilderSamples.QnABot[0]
捕获到异常：System.Threading.Tasks.TaskCanceledException:操作已取消。-->System.IO.IOException:无法从传输连接读取数据：由于线程退出或应用程序请求，I/O操作已中止。-->System.Net.Sockets.SocketException:由于线程退出或应用程序请求，I/O操作已中止
---内部异常堆栈跟踪的结束---
位于System.Net.Sockets.Socket.AwaitableSocketAsyncEventArgs.ThroweException（SocketError错误）
位于System.Net.Sockets.Socket.AwaitableSocketAsyncEventArgs.GetResult（Int16令牌）
位于System.Net.FixedSizeReader.ReadPacketAsync（流传输，异步协议请求）
位于System.Net.Security.SslState.ThrowifeException（）处
位于System.Net.Security.SslState.InternalEndProcessAuthentication（LazyAsyncResult-lazyResult）
位于System.Net.Security.SslState.EndProcessAuthentication（IAsyncResult结果）
位于System.Net.Security.SslStream.EndAuthenticateTaseClient（IAsyncResult asyncResult）
在System.Net.Security.SslStream.c.b_u47_u1（IAsyncResult iar）上
在System.Threading.Tasks.TaskFactory`1.FromAsyncCoreLogic（IAsyncResult iar、Func`2 endFunction、Action`1 endAction、Task`1 Promission、Boolean requiresSynchronization）
---来自引发异常的上一个位置的堆栈结束跟踪---
在System.Net.Http.ConnectHelper.EstablishSslConnectionAsyncCore（Stream、SslClientAuthenticationOptions、sslOptions、CancellationToken CancellationToken）
---内部异常堆栈跟踪的结束---
在System.Net.Http.ConnectHelper.EstablishSslConnectionAsyncCore（Stream、SslClientAuthenticationOptions、sslOptions、CancellationToken CancellationToken）
在System.Threading.Tasks.ValueTask`1.get_Result（）处
位于System.Net.Http.HttpConnectionPool.CreateConnectionAsync（HttpRequestMessage请求，CancellationToken CancellationToken）
在System.Threading.Tasks.ValueTask`1.get_Result（）处
位于System.Net.Http.HttpConnectionPool.WaitForCreatedConnectionAsync（ValueTask`1 creationTask）
在System.Threading.Tasks.ValueTask`1.get_Result（）处
位于System.Net.Http.HttpConnectionPool.SendWithRetryAsync（HttpRequestMessage请求，布尔值doRequestAuth，CancellationToken CancellationToken）
位于System.Net.Http.RedirectHandler.SendAsync（HttpRequestMessage请求，CancellationToken CancellationToken）
位于System.Net.Http.HttpClient.FinishSendAsyncBuffered（任务'1 sendTask，HttpRequestMessage请求，取消令牌源cts，布尔处理）
在d:\a\1\s\libraries\Microsoft.Bot.Builder.AI.QnA.HttpRequestUtils.ExecuteHttpRequestAsync（字符串请求URL、字符串payloadBody、QnAMakerEndpoint端点）中的Microsoft.Bot.Builder.AI.QnA\Utils\HttpRequestUtils.cs:第64行
在d:\a\1\s\libraries\Microsoft.Bot.Builder.AI.QnA.GenerateAnswerUtils.QueryQnaServiceAsync（活动消息活动，QnAMakerOptions选项）中的Microsoft.Bot.Builder.AI.QnA\Utils\GenerateAnswerUtils.cs：第212行
在d:\a\1\s\libraries\Microsoft.Bot.Builder.AI.QnA.GenerateAnswerUtils.GetAnswersRawAsync（iTunesContext turnContext，IMessageActivity messageActivity，QnAMakerOptions选项）中的Microsoft.Bot.Builder.AI.QnA\Utils\GenerateAnswerUtils.cs:第87行
在d:\a\1\s\libraries\Microsoft.Bot.Builder.AI.QnA.QnAMaker.AI.QnA\QnAMaker.cs中的Microsoft.Bot.Builder.GetAnswersRawAsync（iTunesContext turnContext，QnamakeProptions选项，Dictionary`2 telemetryProperties，Dictionary`2 telemetryMetrics）：第198行
在d:\a\1\s\libraries\Microsoft.Bot.Builder.AI.QnA.QnAMaker.GetAnswersAsync（iTunesContext turnContext，QnamakeOptions选项，Dictionary`2 telemetryProperties，Dictionary`2 telemetryMetrics）中的Microsoft.Bot.QnAMaker.AI.QnA\QnAMaker.cs:第158行
在C:\Users\X\Desktop\X\Dialogs\QnAMakerDialog.cs中的X.Dialogs.QnAMakerDialog.CallGenerateAnswer（WaterWallStepContext stepContext，CancellationToken CancellationToken）处：第239行
位于d:\a\1\s\libraries\Microsoft.Bot.Builder.Dialogs\waterwallDialog.onstepsync（waterwallStepContext stepContext，CancellationToken CancellationToken）中的Microsoft.Bot.Builder.Dialogs\waterwallDialog.cs:175行
在d:\a\1\s\libraries\Microsoft.Bot.Builder.Dialogs.WaterwallDialog.RunStepAsync（DialogContext dc，Int32索引，DialogReason，Object result，CancellationToken CancellationToken）中的Microsoft.Bot.Builder.Dialogs\WaterwallDialog.cs:197行
在d:\a\1\s\libraries\Microsoft.Bot.Builder.Dialogs\waterwalldialdialog.BeginDialogAsync（DialogContext dc，对象选项，CancellationToken CancellationToken）中的Microsoft.Bot.Builder.Dialogs\waterwalldialDialog.cs:第82行
在d:\a\1\s\libraries\Microsoft.Bot.Builder.Dialogs\DialogContext.BeginDialogAsync（字符串dialogId，对象选项，CancellationToken CancellationToken）中的Microsoft.Bot.Builder.Dialogs\DialogContext.cs:第170行
在C:\Users\X\Desktop\X\QnAMaker\QnABot.cs第171行中的Microsoft.BotBuilderSamples.QnABot.DispatchtoPointAsync（iTunesContext turnContext，IList`1 intent，RecognitizerResult，RecognitationToken CancellationToken CancellationToken）
在C:\Users\X\Desktop\X\QnAMaker\QnABot.cs中的Microsoft.BotBuilderSamples.QnABot.OnTurnAsync（iTurContext turnContext，CancellationToken CancellationToken）中：第136行
在Microsoft.Bot.Builder.BotFrameworkAdapter.TenantIdWorkaroundForTeamsMiddleware.OnTurnAsync（I