The 'Some elements were lost during import, ActiveX and some proprietary components cannnot be imported' appears when I try to link or import a survey dwg my clients inherited from previous owners (i.e. no hope of getting the originator to resave it) into RAC 2012.
I've seen this mentioned over the years and in several forums but haven't seen a clear answer on why this happens or how it can be resolved (I don't possess Autocad although it will be coming with my upgrade to Design Suite etc. ).
Is it just a generic error message or would anyone know if there are specific issues to look for (distance from origin I've seen mentioned).