Missing App Store Icon. iOS Apps must include a 1024x1024px App Store > Icon in PNG format

In Xcode, they have added one additional app icon size with 1024px * 1024px

Go to Assets.xcassets and you can find this new addition at the bottom of your app icon image set.

Once you add app icon with 1024pt, it should fix the issue.

As stated here we need to add one more icon, called 1024x1024px App Store Icon. Create a png icon of resolution 1024x1024.

Go to Project General Setting Tab

Click on No. 4 which opens the app icon sets. The following section will be visible.

Scroll down and you will see the App Store iOS icon set.

Preferably add the icon inside "AppIcon.appiconset" folder.

you can locate the folder by clicking the folder icon next to "Identity and Type" on the right side of your icon selection screen.

This should fix the issue.

You need to include additional icon of 1024x1024pt size in Assets.xcassets.

Please find the below steps.

1) Go to Assets.xcassets.
2) Drag and drop the icon of 1024*1024pt in App Store iOS 1024pt field of Assets.xcassets.

For more information please find the below GIF representation.

Hope it works!!!