I'm having an issue where trying to use any type from an imported assembly that implements INotifyPropertyChanged results in a compile time error.
I am getting this result on two different machines, and have not experienced this with the same assemblies in Xamarin.Android. I have included an extremely simple test project (empty iPad app) that attempts to use a simple class with one String property that implements INotifyPropertyChanged. I'm sure I'm missing something very simple here, any help would be greatly appreciated.