If you came to this thread because you where using Solid Inspector and got this message:
Then please read on. If not - carry on browsing the forum.
Along the error reports I have collected from Solid Inspector there is one prevailant one which I have not been able to reproduce. The error makes no sense from a code point of view. I’m starting to suspect there might be a Ruby bug and/or SketchUp bug in play as well here.
Can you please save a copy of the model that produced the above warning and attach it here please?
Alternatively, you can send me a private message if you don’t want to share the model publicly.
Along with the model, please also include what SketchUp version you are using and what OS and OS version.