Hello all. Long-time lurker, first-time poster.

I draw cave maps and I'm transitioning from Illustrator CS3 to Xara Xtreme Pro 5. However, this means I need to be able to convert my AI files to XAR files, as some of the maps are ongoing survey projects.

Some of them open OK, although I wish there were a way to transfer that would retain more than just top-level layers. However, I have one file that, no matter what I try, will not open in Xara; I get the following error message:

PDF2XAR EXIT CODE NONZERO

What on earth does that mean? I've tried importing an AI (CS3 ver), an AI (AI10 ver), an AI (AI10 ver with PDF content checked), a PDF (ver 1.5), a PDF (ver 1.6), an SVG (won't open), and a DXF (won't open).

With other maps, the AI10 with PDF content enabled worked well enough to continue. I've done nothing different with this file than the others. What's going on here?