c# - Xamarin.Form XamlCompilation error: Value cannot be null, Parameter name: method -

i'm using vs 2015 on windows 10, xamarin vs latest version updated few day ago, around 02/11/2016

when add xaml compilation namespace in app.cs

[assembly: xamlcompilation(xamlcompilationoptions.compile)] namespace mynamespace {     public class app:application{...} }

all .xaml file build error message:

value cannot null  parameter name: method

even create new empty xaml, error still included. experience issue , knowing how fix it.

ps: purpose adding line try improve performance

after updated latest version of xamarin form (currently 3.3.2.1). gone.

WIKI