删除任务代码后未经授权的异常

删除任务/异步代码后，我收到以下异常：

{“消息”：“发生了错误 . ”，“ExceptionMessage”：“发生了一个或多个错误 . ”，“ExceptionType”：“System.AggregateException”，“StackTrace”：“at System.Threading.Tasks.Task1 .GetResultCore（Boolean waitCompletionNotification）\ r \ n位于F：\ TFS \ Orian360 Res \ ABB.API \中的ABB.API.Customers.DynamicsCRM.Accounts.BusinessLogic.AccountService.GetAccount（字符串查询，HttpRequestHeaders标头） Dev \ Customers \ DynamicsCRM \ Accounts \ BusinessLogic \ AccountService.cs：第26行\ r \ n位于F：\ TFS \中的ABB.API.Customers.DynamicsCRM.Accounts.Web.AccountsController.GetAccount（） \ Orian360 Res \ ABB.API \ Dev \ Customers \ DynamicsCRM \ Accounts \ Web \ Controllers \ AccountsController.cs：line 27 \ r \ n at lambda_method（Closure，Object，Object []）\ r \ n at System.Web.Http.Controllers.ReflectedHttpActionDescriptor.ActionExecutor . <> c__DisplayClass10 . <GetExecutor> b__9（Object instance，Object [] methodParameters）\ r \ n在System.Web.Http.Controllers.ReflectedHttpActionDescriptor.ExecuteAsync（ HttpControllerContext con trollerContext，IDictionary2参数，CancellationToken cancellationToken）\ r \ n ---从抛出异常的上一个位置开始的堆栈跟踪结束--- \ r \ n在System.Runtime.CompilerServices.TaskAwaiter.ThrowForNonSuccess（任务任务）\ r \ n在System.Runtime.CompilerServices.TaskAwaiter.HandleNonSuccessAndDebuggerNotification（任务任务）\ r \ n在System.Web.Http.Controllers.ApiControllerActionInvoker.d__0.MoveNext（）\ r \ n ---从上一个位置开始的堆栈跟踪异常被抛出--- \ r \ n在System.Runtime.CompilerServices.TaskAwaiter.ThrowForNonSuccess（任务任务）\ r \ n在System.Runtime.CompilerServices.TaskAwaiter.HandleNonSuccessAndDebuggerNotification（任务任务）\ r \ n在System.Web上.Http.Filters.ActionFilterAttribute.d__5.MoveNext（）\ r \ n ---从抛出异常的上一个位置开始的堆栈跟踪结束--- \ r \ n在System.Web.Http.Filters.ActionFilterAttribute.d__5 . MoveNext（）\ r \ n ---从抛出异常的上一个位置开始的堆栈跟踪结束--- \ r \ n在System.Runtime System.Web.Http.Filters.ActionFilterAttribute.d__0.MoveNext（）\ r \ n在System.Runtime.CompilerServices.TaskAwaiter.HandleNonSuccessAndDebuggerNotification（任务任务）\ r \ n的.CompilerServices.TaskAwaiter.ThrowForNonSuccess（任务任务）\ r \ n \ n ---从抛出异常的上一个位置开始的堆栈跟踪结束---在System.Runtime.CompilerServices.TaskAwaiter的System.Runtime.CompilerServices.TaskAwaiter.ThrowForNonSuccess（任务任务）\ r \ n中的\ r \ n . System.Web.Http.Controllers.ActionFilterResult.d__2.MoveNext（）\ r \ n中的HandleNonSuccessAndDebuggerNotification（任务任务）\ r \ n \ n ---从抛出异常的上一个位置开始的堆栈跟踪结束--- \ r \ n at System.Runtime.CompilerServices.TaskAwaiter.ThrowForNonSuccess（任务任务）\ r \ n在System.Web.Http.Dispatcher.HttpControllerDispatcher.d__1.MoveNext的System.Runtime.CompilerServices.TaskAwaiter.HandleNonSuccessAndDebuggerNotification（任务任务）\ r \ n （）“，”InnerException“：{”消息“：”发生错误 . “，”ExceptionMessage“：”发生错误发送请求 . “，”ExceptionType“：”System.Net.Http.HttpRequestException“，”StackTrace“：null，”InnerException“：{”消息“：”发生错误 . “，”ExceptionMessage“：”远程服务器返回错误：（401）Unauthorized . “，”ExceptionType“：”System.Net.WebException“，”StackTrace“：”在System.Net.HttpWebRequest.EndGetResponse（IAsyncResult asyncResult）\ r \ n在System.Net上.Http.HttpClientHandler.GetResponseCallback（IAsyncResult ar）“，”InnerException“：{”Message“：”发生错误 . “，”ExceptionMessage“：”目标主体名称不正确“，”ExceptionType“：”System.ComponentModel .Win32Exception“，”StackTrace“：”在System.Net.NTAuthentication.GetOutgoingBlob（Byte [] incomingBlob，Boolean throwOnError，SecurityStatus＆statusCode）\ r \ n在System.Net.NTAuthentication.GetOutgoingBlob（String incomingBlob）\ r \ n at System.Net.NegotiateClient.DoAuthenticate（String challenge，WebRequest webRequest，ICredentials credentials，Boolean preAuthenticate）\ r \ n在System.Net.Negoti ateClient.Authenticate（字符串质询，WebRequest webRequest，ICredentials凭证）\ r \ n在System.Net.AuthenticationManagerDefault.Authenticate（字符串质询，WebRequest请求，ICredentials凭证）\ r \ n在System.Net.AuthenticationState.AttemptAuthenticate（HttpWebRequest httpWebRequest） ，ICredentials authInfo）\ r \ n atSystem.Net.HttpWebRequest.CheckResubmit上的System.Net.HttpWebRequest.CheckResubmitForAuth（）\ r \ n（异常＆e，布尔和禁用上载）“}}}}

The code in its previous state worked without issue:

public async Task<HttpResponseMessage> GetAccount(string query)
        {

            var response = Client.Instance.GetAsync(Client.Instance.BaseAddress + query);
            var responseType = response.Result.StatusCode;
            if (responseType == HttpStatusCode.NotFound)
            {
                return new HttpResponseMessage
                {
                    StatusCode = responseType
                };
            }
            return await response;
        }

I then updated it to be non-async:

public HttpResponseMessage GetAccount(string query, HttpRequestHeaders headers)
    {
        var requestUri = new Uri(Client.Instance.BaseAddress + query);
        var request = new HttpRequestMessage
        {
            RequestUri = requestUri
        };

        foreach (var header in headers)
        {
            request.Headers.Add(header.Key, header.Value);
        }

        var response = Client.Instance.SendAsync(request).Result;
        return response;
    }

What is causing this exception? 它似乎与async / async有关？

控制器定义如下：

[HttpGet]
    [Route("accounts({id:guid})")]
    [Route("accounts")]
    public Task<HttpResponseMessage> GetAccount()
    {
        var query = Request.RequestUri.AbsolutePath.Split('/').Last() + Request.RequestUri.Query;
        var response = _accountService.GetAccount(query, Request.Headers);
        return response;
    }