Every time I try to use a reference file it says that the reference file is invalid and to use an Artlantis 6 file. It IS an Artlantis 6 file! Help?
Are you referring to an export from ArchiCAD? If so, I believe I had a similar issue where I couldn’t open the new file created using a reference file. As I recall, I was trying to open the file directly by double clicking it. I had to open Artlantis and open the file directly from Artlantis to get it to work.