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silverlight application designer not loaded (urgent issue) RRS feed

  • Question

  • User1368300014 posted

    i have silverlight4 installed in my system (runtime, sdk, toolkits)

    when create a new silverlight application the design view not get loaded and throughs the below error

    -------------------------------------------------------------------------------------------------------------------------------------------------------------

    An Unhandled exception had occurred

    System.ArgumentNullException

    Value cannot be null.Parameter name: parentContext

    at Microsoft.Windows.Design.Metadata.ReflectionMetadataContext..ctor(IMetadataContext parentContext) at MS.Internal.Host.ProjectMetadataContext..ctor(IMetadataContext platformMetadata, AssemblyReferenceProvider referenceProvider) at MS.Internal.Host.ProjectMetadataContext.FromReferences(AssemblyReferenceProvider referenceProvider) at MS.Internal.Designer.VSDesigner.GetMetadataForDesignerContext(DesignerContext designerContext) 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()

     

     

     let me know thats the solution for this .. its ver urgent

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    Monday, May 16, 2011 3:32 AM

Answers

All replies

  • User470413944 posted

    Hi,

    Are you using Windows Phone 7?

    Generally, you can try to close VS and restart it then try to switch to design mode.

    For similar issue:

    http://social.msdn.microsoft.com/Forums/en-US/windowsphone7series/thread/2abcd28b-b520-41f8-9ce1-9e5c7724e8b0

    I'm looking forward for your test result.

    • Marked as answer by Anonymous Thursday, October 7, 2021 12:00 AM
    Tuesday, May 17, 2011 9:36 PM
  • User1126057398 posted

    Hello 

      I am a beginer in Silverlight. When I had tried to create a new application in Silverlight(VS2010), designer is not showing up. Below is the error msg on MainPage.xaml:

    Unhandled Exception has occured.

    Details:

    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()

    Wondering How to fix it???

    Thursday, March 28, 2013 3:02 AM