Could not find SDK SQLite.WP80 Xamarin and Azure build error

I am building an Azure app with Xamarin.Forms in Visual Studio 2015. My app is happily using both "Azure Mobile Services SQLiteStore" and "Windows Azure Mobile Services" in the Android and iOS builds. However, I am trying to get the same to build and run on WinPhone with little luck. I have tried various things, but typically end up with the following error:

Could not find SDK "SQLite.WP80, version=3.8.7.2".  C:\Program Files (x86)\MSBuild\12.0\bin\Microsoft.Common.CurrentVersion.targets 1886    5   MyApp.WinPhone

Does anybody have a reliable set of instructions for getting Azure Mobile Services SQLiteStore operational on WinPhone 8.0 ?

Many thanks,