Hi Stephan,
We have checked the reported query “KB sample does not work in iOS platform with Xcode(v9.2)” from our side. We have replicated the error “Compiling IB documents for earlier than iOS 7 is no longer supported” in our sample and found that the reported error is caused due to XCode v9.2 is no longer supported in iOS version less than 7. You can resolve this error by changing the deployment target version in info.plist to atleast 7.0.
For your reference, we have attached the working sample and you can download it from the link below.
Please let us know if you require further assistance.
Regards,
G.Muthu Kumaran