Exception: "LoadTemplate should not be null" (Xamarin 1.4.0.6341)

Hello,
I have updated to Xamarin 1.4.0.6341 today, it all works fine but when I open
a ScrollView with a ListView inside the App crashes and the Error "System.InvalidOperationException: LoadTemplate should not be null"
appears.
When I remove the ListView from the ScrollView, the Page and the Controls onto are shown and the App don't crashes.

Thanks in advance