ValueError: 'Ref' is not in list

[sirus20x6]

even after fixing the file naming issues and the mix of tabs and spaces I can't get it to process the position file.

Traceback (most recent call last):
File "./assygen.py", line 294, in
producePrintoutsForLayer(sys.argv[1], "Top", canv)
File "./assygen.py", line 268, in producePrintoutsForLayer
pf = PickAndPlaceFileKicad('/home/sirus/G3_future/outputs/G3_future.CSV')
File "./assygen.py", line 147, in init
i_dsg = rows[0].index('Ref')
ValueError: 'Ref' is not in list

[KajWiik]

I can confirm this in KiCad 4.0.7. Tried with two CSV generators, same error.