Let me save someone hours of time and build errors.
Go to the AppIcon in your assets and make sure they are linked to your target app.
Next make sure your you edit your Plist source to include the exact CFBundle it says you are missing. In my case I need to add this with the "." exactly as the error displayed. I put the final version of my code plist for example just in case it's helpful.
Fix:
CFBundleIcons.CFBundlePrimaryIcon
AppIcon
CFBundleIconsForVisionOS
Final Code:
Topic:
App & System Services
SubTopic:
Core OS
Tags: