"Inkscape has received additional data from the script executed" info dialog pops up without user input

[Ben Weiner]

The Info dialog is titled:

Inkscape has received additional data from the script executed. The script did not return an error, but this may indicate the results will not be as expected.

In the text area below this heading it says:
You need to install the UniConvertor software.
For GNU/Linux: install the package python-uniconvertor.
For Windows: download it from
http://sk1project.org/modules.php?name=Products&product=uniconvertor
and install into your Inkscape's Python location

If I click "OK" the dialog pops up again shortly afterwards (alternating with a PostScript save dialog -- the first input in this dialog is "Restrict to PS level"). This repeats about four times. It happens quickly enough that it's almost impossible to dismiss info dialog, but if I leave it long enough to search the bug tracker then things seem to settle down.

I have 1 or more SVG files open. Some may have originated as EPS files. The current top document window has the title "Memory document 7".

I think what is actually happening is that I've asked Inkscape to quit and for some reason it wants to do a save operation on the window I have open, but I don't know. Once it has settled I can dismiss the four copies of the info dialog, cancel the PostScript dialog, and quit.

[Ben Weiner (ben-chgta)]

Inkscape version in about dialog: 0.91 r13725

Ubuntu version 16.04 LTS (kernel 4.4.0-45-generic #66-Ubuntu SMP Wed Oct 19 14:12:37 UTC 2016 x86_64 x86_64 x86_64 GNU/Linux)

[Ben Weiner (ben-chgta)]

OK, update: this can happen when Inkscape is unattended for a minute or so, with a file open that has been saved and then not worked on.

The dialogs this time were basically making it impossible to quit, because of what might be considered another Inkscape bug which is that I had done something which did not alter the file I had open but nonetheless made Inkscape ask me if I wanted to save the changes before quitting. In turn that meant I had another dialog to focus on and there was not time to click 'close without saving' before yet another 'rogue' dialog popped up in front.

So the effects of the bug are to:
* raise multiple dialogs unrelated to the user task
* prevent the user from clearing these dialogs
* prevent the user quitting Inkscape cleanly (I used kill)
* probably lose any unsaved work as a consequence of being unable to save before killing the process.

[Hachmann (marenhachmann)]

This sounds similar to https://bugs.launchpad.net/inkscape/+bug/418242 (only not on copy)