I've read about several people having the "Assign Zone to baseline floor system" when trying to run the LEED compliance Analysis. This error is mostly attributed to ceilings and plenums, which I have already corrected. Flr to flr height is equal to flr to ceiling, and return path of HVAC systems is ducted, but I'm still getting the error notice. Where else can I try to fix this error? The error notice doesn't guide me much on where to find the "mistake". Any suggestions?