VisibleLayers error

Question

My app has been using this line without a problem for a couple of weeks. It still runs OK now but the VisibleLayers setting is producing an error in the editor. It says "Unable to cast object of type Microsoft.Expression.DesignModel.DocumentModel.DocumentPrimativeNode to Microsoft.Expression.DesignModel.DocumentModel.DocumentCompositeNode." What does this mean and how do I fix it?<esri:ArcGISDynamicMapServiceLayer ID="SchoolSearch3" 
 Url="http://198.182.104.173/ArcGIS/rest/services/SchoolSearch3/MapServer"
 VisibleLayers="0,1"  />

DonFreeman · Answer

Unfortunately this is a bug in the design view of VS2010.
Your code will still compile and run though.

Good to know.
Thanks

DominiqueBroux · Answer

Unfortunately this is a bug in the design view of VS2010.
Your code will still compile and run though.