安装完后，新建项目，xaml加载就报错了，错误：an unhandled exception has occurred，System.InvalidProgramException
Common Language Runtime detected an invalid program.
at System.ComponentModel.TypeConverterAttribute..ctor(Type type)
at MS.Internal.Metadata.IntrinsicMetadata.AddTypeConverterAttributes()
at MS.Internal.Metadata.IntrinsicMetadata.get_CustomAttributes()
at Microsoft.Windows.Design.Platform.SilverlightMetadataContext..ctor()
at Microsoft.Windows.Design.Platform.SilverlightMetadataContext..ctor(DesignerPlatform platformFactory, Platform blendPlatform)
at MS.Internal.Platform.SilverlightPlatformImpl.get_MetadataContext()
at MS.Internal.Platform.SlmPlatformImpl.get_MetadataContext()
at MS.Internal.Package.VSIsolationProviderService.RemoteReferenceProxy.EnsurePlatformInitialized()
at MS.Internal.Package.VSIsolationProviderService.RemoteReferenceProxy.EnsurePlatformInitialized()
at MS.Internal.Package.VSIsolationProviderService.CreateIsolationProvider(String originalIdentifier, Boolean isGlobal, String identity, FrameworkName frameworkName, AssemblyName appAssemblyName, IVsHierarchy hierarchy)
at MS.Internal.Package.VSIsolationProviderService.CreateIsolationProviderWorker(String identifier, IServiceProvider provider)
at MS.Internal.Package.VSIsolationProviderService.CreateIsolationProvider(String identifier, IServiceProvider provider)
at MS.Internal.Providers.VSDesignerContext.CreateIsolationProvider(IServiceProvider provider, IVsHierarchy hierarchy)
at MS.Internal.Providers.VSDesignerContext.<>c__DisplayClass1.<Initialize>b__0(IsolationProviderProxy i)
at MS.Internal.Providers.IsolationProviderProxy.get_RealProvider()
at MS.Internal.Providers.IsolationProviderProxy.add_UnhandledException(UnhandledExceptionEventHandler value)
at MS.Internal.Designer.DesignerPane.LoadDesignerView()
咋回事儿啊，谢谢！！！！
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新建空的工程也会么？