Question

设置正确的“TwilioAccountSID”，“TwilioAuthToken”和“TwilioNumber”后，网页上显示“调用您时出现问题 - 请稍后再试”。我可以在其他应用程序中使用其他Twilio功能，但ClickToCall无法正常工作。它不会拨出任何一个号码。

示例项目： https://github.com/TwilioDevEd/clicktocall-csharp

Firefox中的控制台日志：

不推荐使用getPreventDefault（）。使用defaultPrevented 代替。 jquery-1.10.2.js：5375：28 XML解析错误：没有根元素发现位置： http://localhost:57471/01d55b0057f14d8aa4f39e67f234bae7/browserLinkSignalR/abort?transport=webSockets&connectionToken=AQAAANCMnd8BFdERjHoAwE%2FCl%2BsBAAAA9nnpT%2Bd2GEGGBvJN2iSr%2FAAAAAACAAAAAAAQZgAAAAEAACAAAAA5C0avgoOxzy0g8wtuZzNLaBQla80xMib%2FzC%2Ft9UuALwAAAAAOgAAAAAIAACAAAAAVgVKnWONXBwpQ%2FQynRYyeKOOZw8ZnvXuTf7SIoOTAGDAAAAD7kYmTiT%2FoNJJMIKh5KrXfhkyBndCsBDP4QnpepbcwWc6o30MXPHYCyAiJwt2Dy2pAAAAAQWB%2BSLeKghpSzeaKqUHL7LVhQ8%2FfLiCtjRL9V%2BL03xElOpifAfuaJ2NzMxckwj2z3BoQ%2BCb7lW9A6zBQMPSXGQ%3D%3D&requestUrl=http%3A%2F%2Flocalhost%3A1430%2F&browserName=Firefox&userAgent=Mozilla%2F5.0+(Windows+NT+10.0%3B+WOW64%3B+rv%3A54.0)+Gecko%2F20100101+Firefox%2F54.0 第1行，第1列：中止：1：1 POST XHR http://localhost:1430/CallCenter/Call [HTTP / 1.1 500内部服务器错误18ms]标头POST响应调用堆栈缓存ControlprivateContent-Length12174Content-的TypeText / HTML; charset = utf-8DateTue，2017年8月22日17:26:58 GMTServerMicrosoft-IIS / 10.0X-ASPNET-Version4.0.30319X供电-ByASP.NETX-SourceFiles =？UTF-8 2 B 4 QzpcVXNlcnNcUmhvZGVzXERvd25sb2Fkc1xjbGlja3RvY2FsbC1jc2hhcnAtbWFzdGVyICgxKVxjbGlja3RvY2FsbC1jc2hhcnAtbWFzdGVyXENsaWNrVG9DYWxsLldlYlxDYWxsQ2VudGVyXENhbGw =？= Acceptapplication / json，text / javascript，/; Q = 0.01Accept-Encodinggzip， deflateAccept-Languageen-US，EN; Q = 0.5Connectionkeep-aliveContent-Length52Content-Typeapplication / X WWW的窗体-urlencoded; charset = UTF-8Hostlocalhost：1430Refererhttp：// localhost：1430 / User-AgentMozilla / 5.0（Windows NT 10.0; WOW64; rv：54.0）Gecko / 20100101 火狐/ 54.0X请求-WithXMLHttpRequest

换行符67：

计算机日志：

Event code: 3005 
Event message: An unhandled exception has occurred. 
Event time: 8/24/2017 11:53:34 AM 
Event time (UTC): 8/24/2017 3:53:34 PM 
Event ID: 9b90d28d894f41a09a832ce672308828 
Event sequence: 13 
Event occurrence: 1 
Event detail code: 0 

Application information: 
    Application domain: /LM/W3SVC/2/ROOT-1-131480635887199949 
    Trust level: Full 
    Application Virtual Path: / 
    Application Path: C:\Users\Rhodes\Documents\Visual Studio 2017\Projects\clicktocall-csharp-master\ClickToCall.Web\ 
    Machine name: DEV-103 

Process information: 
    Process ID: 74140 
    Process name: iisexpress.exe 
    Account name: DEV-103\Rhodes 

Exception information: 
    Exception type: NullReferenceException 
    Exception message: Object reference not set to an instance of an object.
   at ClickToCall.Web.Controllers.CallCenterController.<>c__DisplayClass7_0.<IsProduction>b__0(String domain) in C:\Users\Rhodes\Documents\Visual Studio 2017\Projects\clicktocall-csharp-master\ClickToCall.Web\Controllers\CallCenterController.cs:line 68
   at System.Linq.Enumerable.Any[TSource](IEnumerable`1 source, Func`2 predicate)
   at ClickToCall.Web.Controllers.CallCenterController.IsProduction() in C:\Users\Rhodes\Documents\Visual Studio 2017\Projects\clicktocall-csharp-master\ClickToCall.Web\Controllers\CallCenterController.cs:line 68
   at ClickToCall.Web.Controllers.CallCenterController.GetUri(String salesNumber) in C:\Users\Rhodes\Documents\Visual Studio 2017\Projects\clicktocall-csharp-master\ClickToCall.Web\Controllers\CallCenterController.cs:line 54
   at ClickToCall.Web.Controllers.CallCenterController.<Call>d__5.MoveNext() in C:\Users\Rhodes\Documents\Visual Studio 2017\Projects\clicktocall-csharp-master\ClickToCall.Web\Controllers\CallCenterController.cs:line 46
--- End of stack trace from previous location where exception was thrown ---
   at System.Runtime.CompilerServices.TaskAwaiter.ThrowForNonSuccess(Task task)
   at System.Runtime.CompilerServices.TaskAwaiter.HandleNonSuccessAndDebuggerNotification(Task task)
   at System.Web.Mvc.Async.TaskAsyncActionDescriptor.EndExecute(IAsyncResult asyncResult)
   at System.Web.Mvc.Async.AsyncControllerActionInvoker.<>c__DisplayClass37.<BeginInvokeAsynchronousActionMethod>b__36(IAsyncResult asyncResult)
   at System.Web.Mvc.Async.AsyncResultWrapper.WrappedAsyncResult`1.CallEndDelegate(IAsyncResult asyncResult)
   at System.Web.Mvc.Async.AsyncResultWrapper.WrappedAsyncResultBase`1.End()
   at System.Web.Mvc.Async.AsyncControllerActionInvoker.EndInvokeActionMethod(IAsyncResult asyncResult)
   at System.Web.Mvc.Async.AsyncControllerActionInvoker.AsyncInvocationWithFilters.<InvokeActionMethodFilterAsynchronouslyRecursive>b__3d()
   at System.Web.Mvc.Async.AsyncControllerActionInvoker.AsyncInvocationWithFilters.<>c__DisplayClass46.<InvokeActionMethodFilterAsynchronouslyRecursive>b__3f()
   at System.Web.Mvc.Async.AsyncControllerActionInvoker.<>c__DisplayClass33.<BeginInvokeActionMethodWithFilters>b__32(IAsyncResult asyncResult)
   at System.Web.Mvc.Async.AsyncResultWrapper.WrappedAsyncResult`1.CallEndDelegate(IAsyncResult asyncResult)
   at System.Web.Mvc.Async.AsyncResultWrapper.WrappedAsyncResultBase`1.End()
   at System.Web.Mvc.Async.AsyncControllerActionInvoker.EndInvokeActionMethodWithFilters(IAsyncResult asyncResult)
   at System.Web.Mvc.Async.AsyncControllerActionInvoker.<>c__DisplayClass21.<>c__DisplayClass2b.<BeginInvokeAction>b__1c()
   at System.Web.Mvc.Async.AsyncControllerActionInvoker.<>c__DisplayClass21.<BeginInvokeAction>b__1e(IAsyncResult asyncResult)
   at System.Web.Mvc.Async.AsyncResultWrapper.WrappedAsyncResult`1.CallEndDelegate(IAsyncResult asyncResult)
   at System.Web.Mvc.Async.AsyncResultWrapper.WrappedAsyncResultBase`1.End()
   at System.Web.Mvc.Async.AsyncControllerActionInvoker.EndInvokeAction(IAsyncResult asyncResult)
   at System.Web.Mvc.Controller.<BeginExecuteCore>b__1d(IAsyncResult asyncResult, ExecuteCoreState innerState)
   at System.Web.Mvc.Async.AsyncResultWrapper.WrappedAsyncVoid`1.CallEndDelegate(IAsyncResult asyncResult)
   at System.Web.Mvc.Async.AsyncResultWrapper.WrappedAsyncResultBase`1.End()
   at System.Web.Mvc.Controller.EndExecuteCore(IAsyncResult asyncResult)
   at System.Web.Mvc.Controller.<BeginExecute>b__15(IAsyncResult asyncResult, Controller controller)
   at System.Web.Mvc.Async.AsyncResultWrapper.WrappedAsyncVoid`1.CallEndDelegate(IAsyncResult asyncResult)
   at System.Web.Mvc.Async.AsyncResultWrapper.WrappedAsyncResultBase`1.End()
   at System.Web.Mvc.Controller.EndExecute(IAsyncResult asyncResult)
   at System.Web.Mvc.Controller.System.Web.Mvc.Async.IAsyncController.EndExecute(IAsyncResult asyncResult)
   at System.Web.Mvc.MvcHandler.<BeginProcessRequest>b__5(IAsyncResult asyncResult, ProcessRequestState innerState)
   at System.Web.Mvc.Async.AsyncResultWrapper.WrappedAsyncVoid`1.CallEndDelegate(IAsyncResult asyncResult)
   at System.Web.Mvc.Async.AsyncResultWrapper.WrappedAsyncResultBase`1.End()
   at System.Web.Mvc.MvcHandler.EndProcessRequest(IAsyncResult asyncResult)
   at System.Web.Mvc.MvcHandler.System.Web.IHttpAsyncHandler.EndProcessRequest(IAsyncResult result)
   at System.Web.HttpApplication.CallHandlerExecutionStep.System.Web.HttpApplication.IExecutionStep.Execute()
   at System.Web.HttpApplication.ExecuteStep(IExecutionStep step, Boolean& completedSynchronously)



Request information: 
    Request URL: http://localhost:1430/CallCenter/Call 
    Request path: /CallCenter/Call 
    User host address: ::1 
    User:  
    Is authenticated: False 
    Authentication Type:  
    Thread account name: DEV-103\Rhodes 

Thread information: 
    Thread ID: 8 
    Thread account name: DEV-103\Rhodes 
    Is impersonating: False 
    Stack trace:    at ClickToCall.Web.Controllers.CallCenterController.<>c__DisplayClass7_0.<IsProduction>b__0(String domain) in C:\Users\Rhodes\Documents\Visual Studio 2017\Projects\clicktocall-csharp-master\ClickToCall.Web\Controllers\CallCenterController.cs:line 68
   at System.Linq.Enumerable.Any[TSource](IEnumerable`1 source, Func`2 predicate)
   at ClickToCall.Web.Controllers.CallCenterController.IsProduction() in C:\Users\Rhodes\Documents\Visual Studio 2017\Projects\clicktocall-csharp-master\ClickToCall.Web\Controllers\CallCenterController.cs:line 68
   at ClickToCall.Web.Controllers.CallCenterController.GetUri(String salesNumber) in C:\Users\Rhodes\Documents\Visual Studio 2017\Projects\clicktocall-csharp-master\ClickToCall.Web\Controllers\CallCenterController.cs:line 54
   at ClickToCall.Web.Controllers.CallCenterController.<Call>d__5.MoveNext() in C:\Users\Rhodes\Documents\Visual Studio 2017\Projects\clicktocall-csharp-master\ClickToCall.Web\Controllers\CallCenterController.cs:line 46
--- End of stack trace from previous location where exception was thrown ---
   at System.Runtime.CompilerServices.TaskAwaiter.ThrowForNonSuccess(Task task)
   at System.Runtime.CompilerServices.TaskAwaiter.HandleNonSuccessAndDebuggerNotification(Task task)
   at System.Web.Mvc.Async.TaskAsyncActionDescriptor.EndExecute(IAsyncResult asyncResult)
   at System.Web.Mvc.Async.AsyncControllerActionInvoker.<>c__DisplayClass37.<BeginInvokeAsynchronousActionMethod>b__36(IAsyncResult asyncResult)
   at System.Web.Mvc.Async.AsyncResultWrapper.WrappedAsyncResult`1.CallEndDelegate(IAsyncResult asyncResult)
   at System.Web.Mvc.Async.AsyncResultWrapper.WrappedAsyncResultBase`1.End()
   at System.Web.Mvc.Async.AsyncControllerActionInvoker.EndInvokeActionMethod(IAsyncResult asyncResult)
   at System.Web.Mvc.Async.AsyncControllerActionInvoker.AsyncInvocationWithFilters.<InvokeActionMethodFilterAsynchronouslyRecursive>b__3d()
   at System.Web.Mvc.Async.AsyncControllerActionInvoker.AsyncInvocationWithFilters.<>c__DisplayClass46.<InvokeActionMethodFilterAsynchronouslyRecursive>b__3f()
   at System.Web.Mvc.Async.AsyncControllerActionInvoker.<>c__DisplayClass33.<BeginInvokeActionMethodWithFilters>b__32(IAsyncResult asyncResult)
   at System.Web.Mvc.Async.AsyncResultWrapper.WrappedAsyncResult`1.CallEndDelegate(IAsyncResult asyncResult)
   at System.Web.Mvc.Async.AsyncResultWrapper.WrappedAsyncResultBase`1.End()
   at System.Web.Mvc.Async.AsyncControllerActionInvoker.EndInvokeActionMethodWithFilters(IAsyncResult asyncResult)
   at System.Web.Mvc.Async.AsyncControllerActionInvoker.<>c__DisplayClass21.<>c__DisplayClass2b.<BeginInvokeAction>b__1c()
   at System.Web.Mvc.Async.AsyncControllerActionInvoker.<>c__DisplayClass21.<BeginInvokeAction>b__1e(IAsyncResult asyncResult)
   at System.Web.Mvc.Async.AsyncResultWrapper.WrappedAsyncResult`1.CallEndDelegate(IAsyncResult asyncResult)
   at System.Web.Mvc.Async.AsyncResultWrapper.WrappedAsyncResultBase`1.End()
   at System.Web.Mvc.Async.AsyncControllerActionInvoker.EndInvokeAction(IAsyncResult asyncResult)
   at System.Web.Mvc.Controller.<BeginExecuteCore>b__1d(IAsyncResult asyncResult, ExecuteCoreState innerState)
   at System.Web.Mvc.Async.AsyncResultWrapper.WrappedAsyncVoid`1.CallEndDelegate(IAsyncResult asyncResult)
   at System.Web.Mvc.Async.AsyncResultWrapper.WrappedAsyncResultBase`1.End()
   at System.Web.Mvc.Controller.EndExecuteCore(IAsyncResult asyncResult)
   at System.Web.Mvc.Controller.<BeginExecute>b__15(IAsyncResult asyncResult, Controller controller)
   at System.Web.Mvc.Async.AsyncResultWrapper.WrappedAsyncVoid`1.CallEndDelegate(IAsyncResult asyncResult)
   at System.Web.Mvc.Async.AsyncResultWrapper.WrappedAsyncResultBase`1.End()
   at System.Web.Mvc.Controller.EndExecute(IAsyncResult asyncResult)
   at System.Web.Mvc.Controller.System.Web.Mvc.Async.IAsyncController.EndExecute(IAsyncResult asyncResult)
   at System.Web.Mvc.MvcHandler.<BeginProcessRequest>b__5(IAsyncResult asyncResult, ProcessRequestState innerState)
   at System.Web.Mvc.Async.AsyncResultWrapper.WrappedAsyncVoid`1.CallEndDelegate(IAsyncResult asyncResult)
   at System.Web.Mvc.Async.AsyncResultWrapper.WrappedAsyncResultBase`1.End()
   at System.Web.Mvc.MvcHandler.EndProcessRequest(IAsyncResult asyncResult)
   at System.Web.Mvc.MvcHandler.System.Web.IHttpAsyncHandler.EndProcessRequest(IAsyncResult result)
   at System.Web.HttpApplication.CallHandlerExecutionStep.System.Web.HttpApplication.IExecutionStep.Execute()
   at System.Web.HttpApplication.ExecuteStep(IExecutionStep step, Boolean& completedSynchronously)

Ngrok隧道运行：

Answer 1

Rody，我是Twilio开发人员教育工作者，我们专门研究文档和那些教程。

您帮我们发现了解决方案中的错误！我们假设Origin标头将被传递，但显然是FireFox doesn't send it for AJAX requests。我们已经调整了解决方案以寻找＆＃34; PublicUrl＆＃34; AppSetting，以便应用知道您的应用在哪里公开托管，并可以将正确的URL发送到Twilio。

下拉最新版本的存储库并更新您的ClickToCall.Web\Local.config以包含＆＃34; PublicUrl＆＃34;使用您的ngrok URL设置（没有尾部斜杠）。我在自述文件中记录了这一点，ClickToCall.Web\Local.config.example中有一个示例。

其他人可能出现此问题的另一个可能原因是，如果您在本地运行但使用＆＃34; localhost＆＃34;而不是ngrok。简而言之，您需要做的就是：

选项1 ：命令行

下载并安装ngrok
运行此命令以启动隧道： ngrok http 1430 -host-header="localhost:1430"
这将创建一个独特的ngrok网址，类似于：8da2afef.ngrok.io
从Visual Studio运行应用程序，以便它正在聆听。
在浏览器中打开该ngrok网址并测试该应用。

选项2 ：Visual Studio扩展程序

下载并安装ngrok Extensions
在Visual Studio中，打开ClickToCall解决方案，选择＆＃34;工具＆＃34;菜单并选择＆＃34;启动ngrok隧道＆＃34;
这将创建一个独特的ngrok网址，类似于：8da2afef.ngrok.io
从Visual Studio运行应用程序，以便它正在聆听。
在浏览器中打开该ngrok网址并测试该应用。

请接受我们对令人困惑的文件表示歉意。

Twilio clicktocall-csharp - 首次启动后出现内部500错误

1 个答案: