Xamarin VS 2017无法呈现iOS故事板文档

我在VS 2017的Windows上开始了一个新的Xamarin跨平台项目 . android部分工作正常，但是当我尝试打开iOS Main.Storyboard文件时，我收到错误 . 我连接到一个有xcode 8.3的mac .

Windows VS上的Xamarin.iOS版本 - 10.4.0.123

在VS社区2017上的Xamarin iOS版本在mac - 10.12.0.18

除了降级xcode之外，我找不到任何答案 . 我认为这个问题可能与Xamarion.iOS版本不匹配有关，但我无法弄清楚如何解决这个问题 . 任何帮助是极大的赞赏！！

完整错误日志：

System.AggregateException: One or more errors occurred. ---> System.InvalidOperationException: The returned remote SDK entries are invalid
   at MonoTouch.Design.Client.IosSdkTarget.InitializeLocalFileStore()
   at MonoTouch.Design.Client.IosSdkTarget..ctor(Version xcodeVersion, DataPackEntry[] datapack, String storeDirectory)
   at MonoTouch.Design.Client.IPhoneDesignerSession.<SetupSession>d__257.MoveNext()
   --- 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 MonoTouch.Design.Client.IPhoneDesignerSession.<>c__DisplayClass256_0`1.<EnsureSession>b__0()
   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__175.MoveNext()
--- End of stack trace from previous location where exception was thrown ---
   at MonoTouch.Design.Client.IPhoneDesignerSession.<RenderXmlWithPartialReloadRetry>d__175.MoveNext()
--- 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__174.MoveNext()
--- End of stack trace from previous location where exception was thrown ---
   at MonoTouch.Design.Client.IPhoneDesignerSession.<RenderXml>d__174.MoveNext()
--- 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__170.MoveNext()
--- 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()
--- 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__169.MoveNext()
---> (Inner Exception #0) System.InvalidOperationException: The returned remote SDK entries are invalid
   at MonoTouch.Design.Client.IosSdkTarget.InitializeLocalFileStore()
   at MonoTouch.Design.Client.IosSdkTarget..ctor(Version xcodeVersion, DataPackEntry[] datapack, String storeDirectory)
   at MonoTouch.Design.Client.IPhoneDesignerSession.<SetupSession>d__257.MoveNext()<---


Contents of C:\Users\Jdoyle\AppData\Local\Xamarin\Logs\15.0\iOSDesigner-11168.2017-08-21__16-14-59.log:
MDAddinsHash: 1363a8d943bab7700c93a97474060b6734aa7f94

[2017-08-21 16:17:10.2] INFO: Starting full reload...
[2017-08-21 16:17:10.8] INFO: Reloading: Serialization took 0ms
[2017-08-21 16:17:30.4] INFO: Reloading: Deserialization took 13ms
[2017-08-21 16:17:30.4] INFO: Reloading: Server rendering completed in 19520ms with 52744 bytes
[2017-08-21 16:17:30.4] ERROR: EnsureSession (counter 1): System.AggregateException: One or more errors occurred. ---> System.InvalidOperationException: The returned remote SDK entries are invalid
   at MonoTouch.Design.Client.IosSdkTarget.InitializeLocalFileStore()
   at MonoTouch.Design.Client.IosSdkTarget..ctor(Version xcodeVersion, DataPackEntry[] datapack, String storeDirectory)
   at MonoTouch.Design.Client.IPhoneDesignerSession.<SetupSession>d__257.MoveNext()
   --- End of inner exception stack trace ---
---> (Inner Exception #0) System.InvalidOperationException: The returned remote SDK entries are invalid
   at MonoTouch.Design.Client.IosSdkTarget.InitializeLocalFileStore()
   at MonoTouch.Design.Client.IosSdkTarget..ctor(Version xcodeVersion, DataPackEntry[] datapack, String storeDirectory)
   at MonoTouch.Design.Client.IPhoneDesignerSession.<SetupSession>d__257.MoveNext()<---

Edit Solution

对于任何有同样问题的人，安装VS的Xamarin更新扩展并更新Xamarin Apple SDK为我解决了这个问题 . 按照步骤here进行操作 .