Exporting problem

I’m trying to export some models out into wavefront obj format. I have the individual model by itself in it’s own blend file, it is triangulated, I selected it, go to file>export>Wavefront (.obj) and I get a message saying

“Error: Python script error: check console”

The console says:

Traceback (most recent call Last):
FIle “<string>”, line 209, in save_obj
UnboundedLocalError: local variable ‘uvIdx’ referenced before assignment

I don’t have a clue what this means. All I did when I installed blender was double click the icon and choose a directory, I don’t know anything about python (unless it was automatically installed with Blender, it isn’t installed). Anyone have any idea how to fix this so I can export the models to obj format?