We have discovered one or more issues with your recent delivery for “XXXX”. Your delivery was successful, but you may wish to correct the following issues in your next delivery:
Missing Marketing Icon - iOS Apps must include a 1024x1024px Marketing Icon in PNG format. Apps that do not include the Marketing Icon cannot be submitted for App Review or Beta App Review.
After you’ve corrected the issues, you can use Xcode or Application Loader to upload a new binary to iTunes Connect.
The App Store team
Xcode9 自动为项目marketing icon增加了marketing icon ，你需要拖入响应图片。