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VS 2012 and Blend Preview design view - Catastrophic failure (Exception from HRESULT: 0x8000FFFF RRS feed

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    Hello, I've just installed VS 2012 and created new silverlight 5 Project. When i'm trying to add some controls in my project (button for example) , i'm getting unknown error in VS 2012 and blend preview design view. 

    In this case I've added button control in mainpage.xaml. I guess there is a problem with control (button) content property. After I deleted button content , the error disappeared. Can you help me to solve that issue? Is it a  bug or something?

    WrappedException: Catastrophic failure (Exception from HRESULT: 0x8000FFFF (E_UNEXPECTED))

 at MS.Internal.XcpImports.MethodEx(IntPtr ptr, String name, CValue[] cvData)
   at MS.Internal.XcpImports.MethodEx(DependencyObject obj, String name)
   at MS.Internal.XcpImports.UIElement_UpdateLayout(UIElement element)

    I'm attaching screenshots from my project. 


    Tuesday, November 6, 2012 8:31 AM

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