MonoTouch - xib.designer.cs files losing fully qualified paths for UIKit Objects

Any MonoTouch Solution I create has this issue, If I make any change to the project structure (Add a folder, modify a .xib, add a file etc) my project will not build anymore as all of the UIKit objects no longer a开发者_如何学JAVAre full qualified:

From this: private MonoTouch.UIKit.UIWindow

To: private UIWindow

does anybody have any advice?

This can be fixed by installing Mono 2.10.1, which is now in the MonoDevelop updater.