Comment 29 for bug 418242

Python-uniconvertor is already installed by default in Xubuntu 11.04 so that work-around is not really useful. This bug is really annoying since I use Inkscape a lot for work . After the uniconvertor error happens mouse clicks are now useless, use keyboard shortcuts to save current work, open the file again and do the same thing over and over. That's how annoying it is. You could use inkscape via wine but its has its own quirks but at least usable. I agree with nick_s , killing the xfce4-settings-helper process eliminates the error and is a better work-around. Right click on the process then choose terminate solves the re-spawning issue for me anyways.

Since other known applications/programs reproduce the bug/error, I guess this a library issue, namely a python 2.7 issue. I never had this problem when the default python was still 2.6. On some error reporting systems and forums, people using inkscape 0.48.1 on MAC OS with python 2.7 are also having the more or less the same problem.

Hopefully this gets fixed soon.