Visual studio 在visual studio中启动情节提要时出错

每当我点击launchscreen.storyboard时，我会收到以下错误消息，它有时会工作，所以我不确定是什么原因导致了这种情况。我尝试过创建一个新项目并重新安装VisualStudio，但没有成功

System.AggregateException: One or more errors occurred. ---> System.AggregateException: One or more errors occurred. ---> MonoTouch.Design.Client.InvalidSessionException: Error in the application.
   at MonoTouch.Design.Client.ServerProcessConnection.SendRequest(CommandRequest req, Boolean throwIfNotRunning) in E:\A\_work\79\s\Xamarin.Designer.iOS\MonoTouch.Design.Client\Connection\ServerProcessConnection.cs:line 235
   at MonoTouch.Design.Client.ServerProcessConnection.SendRequest[TResponse](CommandRequest req, Boolean throwIfNotRunning) in E:\A\_work\79\s\Xamarin.Designer.iOS\MonoTouch.Design.Client\Connection\ServerProcessConnection.cs:line 252
   at MonoTouch.Design.Client.ServerProcessConnection.CreateSession() in E:\A\_work\79\s\Xamarin.Designer.iOS\MonoTouch.Design.Client\Connection\ServerProcessConnection.cs:line 111
   at MonoTouch.Design.Client.ServerProcessConnection.<CreateSessionAsync>b__28_0() in E:\A\_work\79\s\Xamarin.Designer.iOS\MonoTouch.Design.Client\Connection\ServerProcessConnection.cs:line 116
   at System.Threading.Tasks.Task`1.InnerInvoke()
   at System.Threading.Tasks.Task.Execute()
--- End of stack trace from previous location where exception was thrown ---
   at Microsoft.VisualStudio.Telemetry.WindowsErrorReporting.WatsonReport.GetClrWatsonExceptionInfo(Exception exceptionObject)
   --- End of inner exception stack trace ---
   at System.Threading.Tasks.Task.ThrowIfExceptional(Boolean includeTaskCanceledExceptions)
   at System.Threading.Tasks.Task`1.GetResultCore(Boolean waitCompletionNotification)
   at System.Threading.Tasks.Task`1.get_Result()
   at MonoTouch.Design.Client.IPhoneDesignerSession.<>c__DisplayClass289_1`1.<EnsureSession>b__1(Task`1 t) in E:\A\_work\79\s\Xamarin.Designer.iOS\MonoTouch.Design.Client\IPhoneDesignerSession.cs:line 2070
   at System.Threading.Tasks.ContinuationResultTaskFromResultTask`2.InnerInvoke()
   at System.Threading.Tasks.Task.Execute()
   --- End of inner exception stack trace ---
   at System.Threading.Tasks.Task.ThrowIfExceptional(Boolean includeTaskCanceledExceptions)
   at System.Threading.Tasks.Task.Wait(Int32 millisecondsTimeout, CancellationToken cancellationToken)
   at System.Threading.Tasks.Task.Wait()
   at MonoTouch.Design.Client.IPhoneDesignerSession.<>c__DisplayClass289_0`1.<EnsureSession>b__0() in E:\A\_work\79\s\Xamarin.Designer.iOS\MonoTouch.Design.Client\IPhoneDesignerSession.cs:line 2136
   at System.Threading.Tasks.Task`1.InnerInvoke()
   at System.Threading.Tasks.Task.Execute()
--- 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 MonoTouch.Design.Client.IPhoneDesignerSession.<RenderXmlWithPartialReloadRetry>d__191.MoveNext() in E:\A\_work\79\s\Xamarin.Designer.iOS\MonoTouch.Design.Client\IPhoneDesignerSession.cs:line 745
--- End of stack trace from previous location where exception was thrown ---
   at MonoTouch.Design.Client.IPhoneDesignerSession.<RenderXmlWithPartialReloadRetry>d__191.MoveNext() in E:\A\_work\79\s\Xamarin.Designer.iOS\MonoTouch.Design.Client\IPhoneDesignerSession.cs:line 752
--- 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 MonoTouch.Design.Client.IPhoneDesignerSession.<RenderXml>d__190.MoveNext() in E:\A\_work\79\s\Xamarin.Designer.iOS\MonoTouch.Design.Client\IPhoneDesignerSession.cs:line 730
--- End of stack trace from previous location where exception was thrown ---
   at MonoTouch.Design.Client.IPhoneDesignerSession.<RenderXml>d__190.MoveNext() in E:\A\_work\79\s\Xamarin.Designer.iOS\MonoTouch.Design.Client\IPhoneDesignerSession.cs:line 738
--- 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.Runtime.CompilerServices.TaskAwaiter.ValidateEnd(Task task)
   at MonoTouch.Design.Client.IPhoneDesignerSession.<ReloadItemsAsync>d__186.MoveNext() in E:\A\_work\79\s\Xamarin.Designer.iOS\MonoTouch.Design.Client\IPhoneDesignerSession.cs:line 619
--- 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 MonoTouch.Design.Tasks.<Cancellable>d__1.MoveNext() in E:\A\_work\79\s\Xamarin.Designer.iOS\MonoTouch.Design.Shared\TaskExtensions.cs:line 28
--- 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 MonoTouch.Design.Client.IPhoneDesignerSession.<ReloadItems>d__185.MoveNext() in E:\A\_work\79\s\Xamarin.Designer.iOS\MonoTouch.Design.Client\IPhoneDesignerSession.cs:line 571
---> (Inner Exception #0) System.AggregateException: One or more errors occurred. ---> MonoTouch.Design.Client.InvalidSessionException: Error in the application.
   at MonoTouch.Design.Client.ServerProcessConnection.SendRequest(CommandRequest req, Boolean throwIfNotRunning) in E:\A\_work\79\s\Xamarin.Designer.iOS\MonoTouch.Design.Client\Connection\ServerProcessConnection.cs:line 235

System.AggregateException:发生一个或多个错误。-->System.AggregateException:发生一个或多个错误。-->MonoTouch.Design.Client.InvalidSessionException:应用程序中出现错误。
在E:\A\\ u-work\79\s\Xamarin.Designer.iOS\MonoTouch.Design.Client\Connection\ServerProcessConnection.SendRequest（CommandRequest-req，Boolean-throwIfNotRunning）中的MonoTouch.Design.Client\Connection\ServerProcessConnection.cs:第235行
在E:\A\\ u work\79\s\Xamarin.Designer.iOS\MonoTouch.Design.Client\Connection\ServerProcessConnection.SendRequest[treresponse]（CommandRequest-req，Boolean-throwfnotrunning）中的MonoTouch.Design.Client\Connection\ServerProcessConnection.cs:第252行
在E:\A\\u work\79\s\Xamarin.Designer.iOS\MonoTouch.Design.Client\Connection\ServerProcessConnection.cs中的MonoTouch.Design.Client.ServerProcessConnection.CreateSession（）处：第111行
在E:\A\\u work\79\s\Xamarin.Designer.iOS\MonoTouch.Design.Client\Connection\ServerProcessConnection.cs中的MonoTouch.Design.Client.ServerProcessConnection.b_u28\u 0（）处：第116行
在System.Threading.Tasks.Task`1.InnerInvoke（）中
在System.Threading.Tasks.Task.Execute（）中
---来自引发异常的上一个位置的堆栈结束跟踪---
位于Microsoft.VisualStudio.Telemetry.WindowsErrorReporting.WatsonReport.GetClrWatsonExceptionInfo（exceptionObject）
---内部异常堆栈跟踪的结束---
位于System.Threading.Tasks.Task.ThrowifeException（布尔值IncludeTaskCanceledException）
位于System.Threading.Tasks.Task`1.GetResultCore（布尔waitCompletionNotification）
在System.Threading.Tasks.Task`1.get_Result（）中
在MonoTouch.Design.Client.IPhoneDesignerSession.c_uu中，在E:\A\\u work\79\s\Xamarin.Designer.iOS\MonoTouch.Design.Client\IPhoneDesignerSession.cs中显示Class289_1`1.b_u1（任务`1t）:2070行
位于System.Threading.Tasks.ContinuationResultTaskFromResultTask`2.InnerInvoke（）
在System.Threading.Tasks.Task.Execute（）中
---内部异常堆栈跟踪的结束---
位于System.Threading.Tasks.Task.ThrowifeException（布尔值IncludeTaskCanceledException）
在System.Threading.Tasks.Task.Wait（Int32毫秒计时，CancellationToken CancellationToken）
在System.Threading.Tasks.Task.Wait（）中
在MonoTouch.Design.Client.IPhoneDesignerSession.c_uu中，在E:\A\\u-work\79\s\Xamarin.Designer.iOS\MonoTouch.Design.Client\IPhoneDesignerSession.cs中显示Class289_0`1.b_u0（）：第2136行
在System.Threading.Tasks.Task`1.InnerInvoke（）中
在System.Threading.Tasks.Task.Execute（）中
---来自引发异常的上一个位置的堆栈结束跟踪---
at System.Runtime.CompilerServices.TaskAwaiter.ThrowForNonSuccess（任务任务）
在System.Runtime.CompilerServices.TaskWaiter.HandleNonSuccessAndDebuggerNotification（任务任务）中
在E:\A\\ u work\79\s\Xamarin.Designer.iOS\MonoTouch.Design.Client\IPhoneDesignerSession.d_u191.MoveNext（）中的MonoTouch.Design.Client.IPhoneDesignerSession.d_u191;.MoveNext（）处：第745行
---来自引发异常的上一个位置的堆栈结束跟踪---
在E:\A\\ u work\79\s\Xamarin.Designer.iOS\MonoTouch.Design.Client\IPhoneDesignerSession.d_u191.MoveNext（）中的MonoTouch.Design.Client.IPhoneDesignerSession.d_u191;.MoveNext（）处：第752行
---来自引发异常的上一个位置的堆栈结束跟踪---
at System.Runtime.CompilerServices.TaskAwaiter.ThrowForNonSuccess（任务任务）
在System.Runtime.CompilerServices.TaskWaiter.HandleNonSuccessAndDebuggerNotification（任务任务）中
在E:\A\\ u work\79\s\Xamarin.Designer.iOS\MonoTouch.Design.Client\IPhoneDesignerSession.d_u190.MoveNext（）中的MonoTouch.Design.Client.IPhoneDesignerSession.cs:第730行
---来自引发异常的上一个位置的堆栈结束跟踪---
在E:\A\\ u work\79\s\Xamarin.Designer.iOS\MonoTouch.Design.Client\IPhoneDesignerSession.d_u190.MoveNext（）中的MonoTouch.Design.Client.IPhoneDesignerSession.cs:738行
---来自引发异常的上一个位置的堆栈结束跟踪---
at System.Runtime.CompilerServices.TaskAwaiter.ThrowForNonSuccess（任务任务）
在System.Runtime.CompilerServices.TaskWaiter.HandleNonSuccessAndDebuggerNotification（任务任务）中
at System.Runtime.CompilerServices.TaskAwaiter.ValidateEnd（任务任务）
在E:\A\\u work\79\s\Xamarin.Designer.iOS\MonoTouch.Design.Client\IPhoneDesignerSession.d_u186.MoveNext（）中的MonoTouch.Design.Client.IPhoneDesignerSession.d_u186;.MoveNext（）处：第619行
---来自引发异常的上一个位置的堆栈结束跟踪---
at System.Runtime.CompilerServices.TaskAwaiter.ThrowForNonSuccess（任务任务）
在System.Runtime.CompilerServices.TaskWaiter.HandleNonSuccessAndDebuggerNotification（任务任务）中
在E:\A\\u-work\79\s\Xamarin.Designer.iOS\MonoTouch.Design.Shared\TaskExtensions.cs中的MonoTouch.Design.Tasks.d_u1.MoveNext（）处：第28行
---来自引发异常的上一个位置的堆栈结束跟踪---
at System.Runtime.CompilerServices.TaskAwaiter.ThrowForNonSuccess（任务任务）
在System.Runtime.CompilerServices.TaskWaiter.HandleNonSuccessAndDebuggerNotification（任务任务）中
在E:\A\\ u work\79\s\Xamarin.Designer.iOS\MonoTouch.Design.Client\IPhoneDesignerSession.d_u185.MoveNext（）中的MonoTouch.Design.Client.IPhoneDesignerSession.cs:第571行
--->（内部异常#0）System.AggregateException:发生一个或多个错误。-->MonoTouch.Design.Client.InvalidSessionException:应用程序中出现错误。
在E:\A\\ u-work\79\s\Xamarin.Designer.iOS\MonoTouch.Design.Client\Connection\ServerProcessConnection.SendRequest（CommandRequest-req，Boolean-throwIfNotRunning）中的MonoTouch.Design.Client\Connection\ServerProcessConnection.cs:第235行

您是否使用最新的Visual Studio版本将XCode更新为最新的稳定版本？添加有关XCode和VS的更多详细信息@JackHua MSFT Yes您可以在Visual Studio内报告，发送费用