Can't run Debug Session on iPad Device

Hi all,

I recently updated Visual Studio to Update 4 and Xamarin Studio to 4.2.1 and it has completely broken the ability to build and run my Visual Studio project on an iPad device, the error I get is:

Mono.IOS.VisualStudio.MonoTouchPackage Error: 0 : Build server control connection failed

When I try to run on my iPad device in debug mode is just finishes with 'Debug Session Ended" and never runs.

Does anyone know of any fix to this?

Thanks Phillip