Error building after update to 5.1.2p3

I have just updated from 5.1.2p1 to 5.1.2p3 and when building to xCode I get this error:

Error building Player: FileNotFoundException: Temp/StagingArea/Trampoline/LaunchScreen.xib does not exist

I am not using the LaunchScreen.xib in my project? I I make a replace build I can build?!?

Any help on this is appreciated