Windows Phone 8.1 Support in Xamarin Forms

Recently Xamarin Forms has been expanded to support Windows Phone 8.1 and Windows 8.1. There are instructions online for adding a Windows Phone 8.1 app to your solution and plugging it all together here:-

http://developer.xamarin.com/guides/cross-platform/xamarin-forms/windows/getting-started/phone/

However there is a small omission which will lead to a build error – #6 tells you to remove the PhonePage base class from your MainPage definition but you actually need to replace it with:-

public sealed partial class MainPage : Xamarin.Forms.Platform.WinRT.WindowsPhonePage

WindowsPhonePage contains the LoadApplication method which you add in #7.

The instructions for Windows 8.1 require the same tweak except using WindowsPage instead of WindowsPhonePage