I did it! By adding NSAppClip to the info tab, the info.plist file is generated and I could remove the data and added my data for NSUbiquitousContainers! It works! Please close the question!

you get the same error by just creating a new project with "Hello World" Apple please help us!

Same here, Apple please give us a correction!

Thanks Kevin! Everything is often more complicated as the first thought. Is there any way forward to get the information, which you can trust, to sort out the protocols for the accessories? I have seen some data in the "Controller for Homekit" app listing Thread status,... and Thread openThread version! Any idea how to get that data?