Looks like apps built under iOS 11 SDK are required to use AppIconset in order to be able to upload to iTunes Connect.
Looks like apps built under iOS 11 SDK are required to use AppIconset in order to be able to upload to iTunes Connect. We should migrate to use AppIconset for app icons, just like how Chrome is doing so.
Comment 1 by yuweih@chromium.org
, Sep 24 2017