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

I had this same error when trying to submit when I was NOT using a launch screen xib file. I had all the right image assets at the right dimensions but still no.

I found this post where a chap had the same issue and ended up using a 568x320 file as indicated in the error. I tried the same but this didn't work for me.

In the end, as my app is for iOS8 only, I used a xib file and the app submitted successfully.