Question

我正在开发一款Windows Phone 8.1 sdk
当我使用vs 2013更新3时，代码可以运行，我可以运行我的演示但是，昨天，我更新了我的vs 2013以更新4，然后抛出一个System.TypeLoadException
代码详情如下：

var swapChainPanel = new SwapChainPanel();
Children.Add(swapChainPanel);
var res = new CXMapResource("", "");
cxEngine = new CXMapEngine(res);

类型 CXMapResource 是由c ++
编写的Windows运行时组件类型它是第一个winrt类型我加载到我的代码中我在这一行之前设置了一个断点，它在这里，然后继续，然后崩溃，
输出：

A first chance exception of type 'System.TypeLoadException' occurred in Com.AMap.winmd
A first chance exception of type 'System.Exception' occurred in WP8.1Demo.ni.EXE

2014年更新11 18 16:08

enter image description here

System.TypeLoadException was unhandled by user code
  HResult=-2146233054
  Message=Requested Windows Runtime type 'WinRTDXMapLib.CXMapResource' is not registered.
  Source=mscorlib
  TypeName=WinRTDXMapLib.CXMapResource
  StackTrace:
       at System.StubHelpers.StubHelpers.GetWinRTFactoryObject(IntPtr pCPCMD)
       at WinRTDXMapLib.CXMapResource..ctor(String EngineResourcePath, String ShaderResourcePath)
       at Com.AMap.Maps.Core.AmapSharpEngine..ctor()
       at Com.AMap.Api.Maps.AMapControl..ctor()
       at WP8._1Demo.MainPage..ctor()
       at WP8._1Demo.WP8_1Demo_XamlTypeInfo.XamlTypeInfoProvider.Activate_0_MainPage()
       at WP8._1Demo.WP8_1Demo_XamlTypeInfo.XamlUserType.ActivateInstance()
  InnerException: System.Runtime.InteropServices.COMException
       HResult=-2147221164
       Message=Class not registered (Exception from HRESULT: 0x80040154 (REGDB_E_CLASSNOTREG))
       ErrorCode=-2147221164
       InnerException:

我让我的大学在vs 2013 update 2中运行相同的代码，并且它正常工作请告诉我可能导致这个问题的原因，给我一些建议，谢谢!!