Xamarin.Forms.Xaml.XamlParseException: 'Position 61:50. Can not find the object referenced by ThisPa

hello
in latest stable release of xamarin forms there is a problem, when I try to give a cell value that does not exist in its own BindingContext but in the page BindingContext I have to write something like that
<<<AddToFavoritesCommand="{Binding Source={x:Reference ThisPage}, Path=BindingContext.AddToFavoritesCommand}">>>
but is throw an exception
<<<Xamarin.Forms.Xaml.XamlParseException: 'Position 61:50. Can not find the object referenced by ThisPage'>>>
when I turn Xamarin.Forms version to version less than 4.1 is work fine but 4.1 and above is still give me the above exception.
is there any help or workaround?