Silverlight应用程序中MainPage的错误

我对Silver Light应用程序非常新颖。当我试图创建一个Silverlight应用程序，我在炫魅设计Silverlight应用程序中MainPage的错误

System.NullReferenceException 
Object reference not set to an instance of an object. 
    at Microsoft.Windows.Design.Platform.SilverlightMetadataContext.SilverlightXamlExtensionImplementations.<GetXmlNamespaceCompatibilityMappings>d__8.MoveNext() 
    at MS.Internal.Design.Metadata.ReflectionProjectNode.BuildSubsumption() 
    at MS.Internal.Design.Metadata.ReflectionProjectNode.SubsumingNamespace(Identifier identifier) 
    at MS.Internal.Design.Markup.XmlElement.BuildScope(PrefixScope parentScope, IParseContext context) 
    at MS.Internal.Design.Markup.XmlElement.ConvertToXaml(XamlElement parent, PrefixScope parentScope, IParseContext context, IMarkupSourceProvider provider) 
    at MS.Internal.Design.DocumentModel.DocumentTrees.Markup.XamlSourceDocument.FullParse(Boolean convertToXamlWithErrors) 
    at MS.Internal.Design.DocumentModel.DocumentTrees.Markup.XamlSourceDocument.get_RootItem() 
    at Microsoft.Windows.Design.DocumentModel.Trees.ModifiableDocumentTree.get_ModifiableRootItem() 
    at Microsoft.Windows.Design.DocumentModel.MarkupDocumentManagerBase.get_LoadState() 
    at MS.Internal.Host.PersistenceSubsystem.Load() 
    at MS.Internal.Host.Designer.Load() 
    at MS.Internal.Designer.VSDesigner.Load() 
    at MS.Internal.Designer.VSIsolatedDesigner.VSIsolatedView.Load() 
    at MS.Internal.Designer.VSIsolatedDesigner.VSIsolatedDesignerFactory.Load(IsolatedView view) 
    at MS.Internal.Host.Isolation.IsolatedDesigner.BootstrapProxy.LoadDesigner(IsolatedDesignerFactory factory, IsolatedView view) 
    at MS.Internal.Host.Isolation.IsolatedDesigner.BootstrapProxy.LoadDesigner(IsolatedDesignerFactory factory, IsolatedView view) 
    at MS.Internal.Host.Isolation.IsolatedDesigner.Load() 
    at MS.Internal.Designer.DesignerPane.LoadDesignerView()

得到一个错误，任何一个能提供我一个解决方案。我使用Silverlight 5，VS 2010，.Net框架4

来源

2013-08-20 Shijo Joseph

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New MS Update causes VS2010 Silverlight project to have error in Design WPF editor

来源

2013-08-20 15:50:21

亲爱的所有

我发现在安装和卸载花了几个小时后的溶液Silverlight的不同版本。

Follow the Steps for the solution 

Step1: Uninstall all the things related to Silverlight 
Step2: Install the Silverlight4.0 
Step3: Install Silverlight3 SDK

现在打开该项目，可能有机会浏览器索要最新的Silverlight版本。 >>但忽视这一点。

来源

2013-08-21 09:58:19

我想知道您是否通过查看我建议的文章找到它......只是说... –

Silverlight应用程序中MainPage的错误

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