How to solve “Missing Marketing Icon. iOS Apps must include a 1024x1024px”

Question

I am uploading app in iTunes from Xcode 9.0...This error is showing on the last step. How to solve this? 1024x1024px icon is present in my icons list

Answer 1

Since XCode 12 you will have to explicitly activate "Mac" in your Assets as a Device for macCatalyst apps:

After you have done that, you will see some new frames inside the main windows where you can add AppIcons for Mac.

You have to add your 1024x1024 logo to the new frame "Mac 512pt 1024x1024px". The other Mac-AppIcons can be left empty.