shrug-l: Help with ArcGIS SlverLight API Warning/Error message

[Tan, Yurong (OIG)]

I am getting this error message (below) in a couple of places (Visual Studio 2010 SP1) and I have no clue of it.  Specifically, this particular message is related to the "Legend" interface.  Though it is an error, the project does compile and display, but the legend was incorrect.  Does anyone have his two cents to share or offer a pointer where I may get a solution to the problem?  Support is kind of slow these days.  Thanks

Error message below:

Error      1              Unable to cast object of type 'Microsoft.Expression.DesignModel.DocumentModel.DocumentPrimitiveNode' to type 'Microsoft.Expression.DesignModel.DocumentModel.DocumentCompositeNode'.                C:\Users\oigbaytany\Documents\Visual Studio 2010\Projects\FindTool\FindTool\MainPage.xaml            207         26                FindTool

Yurong Tan
US Dept of veterans Affairs
352-337-2375
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