When i try to publish my app, available before in letterbox mode for iphone 5, i get this error message "iPhone 5 Optimization Requirement - Your binary is not optimized for iPhone 5." saying that my app is missing the image "Default-568h@2x" i deleted in order to make my app run in letterbox mode. The app is supposed to be compatible with ios 5 and 6 and had been projected using storyboards!
Now i have no idea how to optimize my app for iphone 5? Can somenone explain to me how to letterbox again the app or optimize it for iphone 5? There's a third storyboard to compile?