The application is missing required entitlement com.apple.developer.icloud-services'

Toggling iCloud didn't work for me. Reinstalling the app didn't work either. The problem seems to happen whenever I have break points enabled. If I turn these off it runs without any problem.

Toggling the iCloud Capability on and off seems to have fixed it.

Xcode 11.1

Make sure you have enabled it for both debug and release mode: