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
Tap little grey circle arrow next to App Icons Source to go to the icon drag/drop screen.
Then go to the bottom and drag your new 1024 icon in the 1024 slot
Hint: Your iTunesArtwork@2x.png icon is the same thing as this requirement and you already have it because you already use it in the App Store through iTunes Connect