Quake MAP exporter is still broken in the new 2.58.1 release of Blender, this time with a different error. Unlike previous, the error happens regardless as to what state the scene is in so un/textured surfaces err out regardless.;
Map Exporter 0.0
writing cubes from meshes
Traceback (most recent call last):
File "D:\Program Files\Blender Foundation\Blender 2.58a\2.58\scripts\addons\io
_scene_map\__init__.py", line 74, in execute
return export_map.save(self, context, **keywords)
File "D:\Program Files\Blender Foundation\Blender 2.58a\2.58\scripts\addons\io
_scene_map\export_map.py", line 470, in save
export_map(context, filepath)
File "D:\Program Files\Blender Foundation\Blender 2.58a\2.58\scripts\addons\io
_scene_map\export_map.py", line 346, in export_map
elif is_tricyl_facegroup(face_group):
File "D:\Program Files\Blender Foundation\Blender 2.58a\2.58\scripts\addons\io
_scene_map\export_map.py", line 215, in is_tricyl_facegroup
if len(f) == 3:
TypeError: object of type 'MeshFace' has no len()
location:<unknown location>:-1
location:<unknown location>:-1