Can't submit the app with storyboard launch images to the App Store: Your binary is not optimized for iPhone 5

Question

I am trying to submit my first app to the App Store but when I try I am getting the following error:

ERROR ITMS-9000: \"Your binary is not optimized f

Answer 1

For the lost Xamarin souls here, I had this issue by using an images xcassets called Images.xcassets under the Resources folder.

I create it from scratch, name it Media.xcassets as it comes from default, and under the root folder, not Resources. And it works. :/