服务器从Visual Studio返回了无效或无法识别的响应错误

Question

这很奇怪，来自微软。在Visual Studio中，当我从Visual Studio执行应用程序代码时，大多数时候都会收到以下错误，然后将代码发布到自己的服务器上，Web应用程序运行正常（发出请求时没有任何错误），并且从我的PC（与Visual Studio所在的PC是同一台PC）上，我向soapUI发出了相同的请求，我从调用的服务器URL中没有收到任何错误。为什么我会从Visual Studio中收到此错误，然后进行修复。

出于安全原因，我无法提供该网址。

System.AggregateException
  HResult=0x80131500
  Message=One or more errors occurred. (An error occurred while sending the request.)
  Source=System.Private.CoreLib
  Arborescence des appels de procédure :
   at System.Threading.Tasks.Task`1.GetResultCore(Boolean waitCompletionNotification)
   at Amadeus.Endpoint.call(String body) in C:\Users\Gervil Doubal\source\repos\Acompa chart\Amadeus\Endpoint.cs:line 175
   at Amadeus.EndpointGeneric`2.call() in C:\Users\Gervil Doubal\source\repos\Acompa chart\Amadeus\EndpointGeneric.cs:line 32
   at OnlineAgency.Controllers.CarController.userInfo() in C:\Users\Gervil Doubal\source\repos\Acompa chart\OnlineAgency\Controllers\CarController.cs:line 402
   at Microsoft.Extensions.Internal.ObjectMethodExecutor.Execute(Object target, Object[] parameters)
   at Microsoft.AspNetCore.Mvc.Internal.ControllerActionInvoker.<InvokeActionMethodAsync>d__12.MoveNext()

Exception interne 1 :
HttpRequestException : An error occurred while sending the request.

Exception interne 2 :
WinHttpException : Le serveur a renvoyé une réponse non valide ou non reconnue

InnerException：

{System.Net.Http.HttpRequestException: An error occurred while sending the request. ---> System.Net.Http.WinHttpException: Le serveur a renvoyé une réponse non valide ou non reconnue   
at System.Runtime.ExceptionServices.ExceptionDispatchInfo.Throw()   at System.Threading.Tasks.RendezvousAwaitable`1.GetResult()   at System.Net.Http.WinHttpHandler.<StartRequest>d__105.MoveNext()   --- End of inner exception stack trace ---   at System.Runtime.ExceptionServices.ExceptionDispatchInfo.Throw()   at System.Runtime.CompilerServices.TaskAwaiter.HandleNonSuccessAndDebuggerNotification(Task task)   at System.Runtime.CompilerServices.ConfiguredTaskAwaitable`1.ConfiguredTaskAwaiter.GetResult()   at System.Net.Http.DiagnosticsHandler.<SendAsync>d__2.MoveNext()--- End of stack trace from previous location where exception was thrown ---   at System.Runtime.ExceptionServices.ExceptionDispatchInfo.Throw()   at System.Runtime.CompilerServices.TaskAwaiter.HandleNonSuccessAndDebuggerNotification(Task task)   at System.Runtime.CompilerServices.ConfiguredTaskAwaitable`1.ConfiguredTaskAwaiter.GetResult()   at System.Net.Http.HttpClient.<FinishSendAsyncBuffered>d__58.MoveNext()--- End of stack trace from previous location where exception was thrown ---   at System.Runtime.ExceptionServices.ExceptionDispatchInfo.Throw()   at System.Runtime.CompilerServices.TaskAwaiter.HandleNonSuccessAndDebuggerNotification(Task task)   at System.Runtime.CompilerServices.TaskAwaiter`1.GetResult()   at Amadeus.Endpoint.<_call>d__33.MoveNext() in C:\Users\Gervil Doubal\source\repos\Acompa chart\Amadeus\Endpoint.cs:line 131}

消息：An error occurred while sending the request.

来源："System.Private.CoreLib"

其他InnerException：

{System.Net.Http.WinHttpException (0x80072F78): Le serveur a renvoyé une réponse non valide ou non reconnue (The server returned an invalid or unrecognized response)
   at System.Runtime.ExceptionServices.ExceptionDispatchInfo.Throw()
   at System.Threading.Tasks.RendezvousAwaitable`1.GetResult()
   at System.Net.Http.WinHttpHandler.<StartRequest>d__105.MoveNext()}

ErrorCode：-2147012744

NativeCodeError：12152

来源："System.Private.CoreLib"

StackTrace：

"   at System.Runtime.ExceptionServices.ExceptionDispatchInfo.Throw()\r\n   at System.Threading.Tasks.RendezvousAwaitable`1.GetResult()\r\n   at System.Net.Http.WinHttpHandler.<StartRequest>d__105.MoveNext()"

调用函数我删除了一些与http-client无关的逻辑代码：

private async Task<String> _call(String body)
        {
            var client = new HttpClient();

            client.DefaultRequestHeaders.Clear();
            client.DefaultRequestHeaders.Accept.Add(new System.Net.Http.Headers.MediaTypeWithQualityHeaderValue("text/xml"));
            client.DefaultRequestHeaders.Add("SoapAction", action + "/" + service);
            client.Timeout = TimeSpan.FromMinutes(3);

            StringContent httpContent = new StringContent(xml, Encoding.UTF8, "text/xml");

            HttpResponseMessage resp = await client.PostAsync(url + "/" + wSAP, httpContent);
            return await resp.Content.ReadAsStringAsync();
        }

电话是：

var resp = _call(body);
return resp.Result;