Error “Class VCWeakObjectHolder is implemented in both…” is crashing debug sessions

Question

I am getting following error all the time in my iOS app:

objc[56232]: Class VCWeakObjectHolder is implemented in both /Applications/Xcode.app/Contents/D

Answer 1

I submitted bug #43377301 to https://bugreport.apple.com/

Debug messages should be off in Apple frameworks (Class VCWeakObjectHolder)

I'm currently fixing bugs in an old code base and I have no idea what this internal Apple "warning" means.

It shouldn't be displayed to the 3rd party developer. I'm using CoreBluetooth and Objective-C.