Error: The application ApplicationName needs to be rebuilt due to an inconsistency between the connected Mac and the local app

Question

When trying to build the iOS version of my Xamarin application I received the following error:

The application ApplicationName needs to be rebuilt due to an inconsistency between 
the connected Mac and the local app. Please rebuild the application and try
again.

I am using the following software:

1. Windows 10

   • Visual studio 2015 Community
   • Xamarin.iOS 9.4.2.24
   • Xamarin 4.0.1.145

2. OS X 10.11.3 El Capitan.

   • Xcode 7.2.1
   • Xamarin Studio 5.10.3
   • Mono 4.2.3
   • GTK+ 2.24.23
   • Xamarin.iOS 9.4.2.27
   • Xamarin.Android 6.0.2.1

Are there any work arounds for this?

Answer 1

It looks like you are hitting one of the following bugs:

https://bugzilla.xamarin.com/show_bug.cgi?id=37937

This should hopefully be fixed in Cycle 7 - workaround here

https://bugzilla.xamarin.com/show_bug.cgi?id=37600

And this should hopefully be fixed in Cycle 6 SR 2 - workaround in this comment

Answer 2

https://forums.xamarin.com/discussion/56054/the-application-xxx-needs-to-be-rebuilt-due-to-an-inconsistency

As suggested on the forum linked above, I found that disconnecting the Mac build agent and reconnecting fixed this issue.