Today I converted my VS2010SP1, Silverlight 4, Prism4.0, Esri ArcGis 2.4 application to: VS2012RC and Silverlight 5, Prism4.1 and Esri ArcGis api 3.0.
It uses an Esri map, and I get a strange error while opening an xaml page:
XamlParseException: [Line: 0 Position: 0]
at MS.Internal.XcpImports.CheckHResult(UInt32 hr)
at MS.Internal.XcpImports.FrameworkElement_MeasureOverride(FrameworkElement element, Size availableSize)
at System.Windows.FrameworkElement.MeasureOverride(Size availableSize)
at System.Windows.FrameworkElement.MeasureOverride(IntPtr nativeTarget, Single inWidth, Single inHeight, Single& outWidth, Single& outHeight)
I don't have a clue where and how to diagnose this error...