"Invalid face format" error does not name the file in question.
When compiling my map with q3map2, it fails on the following error:
--- AddTriangleModels --- ERROR: Invalid face format in OBJ, line 398.
However, the file in question is not named in the error message, making the problem hard to track down. (Since
grep -i obj parpax.map does not give any output, and since I don't remember even including a model that is stored in OBJ format, I am actually clueless here.)