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

We faced the same issue and couldn't solve it after trying many solutions, we believe it's a kind of bug in App submission. But we found a workaround which can keep launch images localized and pass the submission verification.

Environment:

Xcode 6.1 (6A1052c) with iOS 8.1 SDK

Precondition:

Have following properties in your "*-info.plist" file.

Steps:

1. Go to your target's settings and in our standard scenario (localize launch images, which uses "UILaunchImages" in "*-info.plist" but not image assets), it should look like the image

2. Change the setting to use image assets (Note: after this step, Xcode will automatically REMOVE the "UILaunchImages" properties in your *-info.plist file. So please BACKUP the properties first.)

3. Go to the "LaunchImage" assets (can click the arrow button on the right) and fill with images from one of your *.lproj folder.

4. Now, go to the "LaunchImage" folder which contains images and "Contents.json" file.

5. Remove ALL the launch IMAGES just added, but keep the "Contents.json" (and it's content) file.

6. Check the "Contents.json", it should contains properties like image below

Double check following items:

• Localized launch images in resource folders (en.lproj, ja.lproj, etc.)

• *-info.plist contains "UILaunchImages" properties

• Project setting uses image asset for launch images

• "Contents.json" in "LaunchImage" asset folder, and the folder DOES NOT really have launch images

Now you can have a try for localized launch images and submit the binary to iTunes Connect. In our App, the workaround did work for "localized launch images" and "submission successful".

It should be a trick for avoiding the bug in submission checking.

Since the workaround above doesn't change any resource, except making the checking thinks we use image assets, we are more convinced that there are some bugs in Apple's checking.

Cheers!

This problem appears when you use a xib or storyboard as your launch screen. This was a new feature for iOS 8 (so it's not available in iOS 7). Since Apple didn't drop yet support for iOS 7, they maintain the need to supply the Launch screens for this version also.

You can change to Images.xcassets as the chosen answer is, but then if you want to use LaunchScreen.xib (as you invoked) for iOS 8+ devices, all you need to do is to create also the LaunchScren images the old way:

• add to your plist file the a new row named UILaunchImages of type Array.
• add a new item in your array (Item 0) of type Dictionary.
• add a new item in the Dictionary with the key UILaunchImageName and the value Default.
• add to your bundle 2 images named : Default-568h.png of size (320x568) and Default-568h@2x.png (640x1136).

If you want your app to run on other older devices with iOS 7, you can add also the 4s size, iPad size etc. as the Default images.