Comment 16 for bug 408093

Wrong again - but solved: the problem was that I have a newer version of the 'Guides Creator' (2.31) in ~/.config/inkscape/extensions installed, and while I had renamed and modified that inx file to use a separate menu entry I forgot to rename 'guides_creator.py' as well to be able to use both versions in parallel. So the original inx file called the newer version of the python script instead and failed due to changes in the script options.