Hi,

I posted a few days back on the inkscape-users mailing list about a warning dialog that pops up when I use the Perspective effect. The dialog lists the following warning 4 times with slightly different numbers at the front:

** (inkscape:5984): WARNING **: Format autodetect failed. The file is being opened as SVG.

I've since applied the recent patch submitted by acspike which doesn't seem to fix the problem. Keep in mind that the effect *does* work, but always pops up this dialog just before performing the effect. This doesn't happen on my XP box at work, only on my linux box at home (Ubuntu Edgy).

I'm interested in solving the problem because I've been doing several inkscape screencasts and I was hoping to do one using the perspective effect, but it doesn't look so great (for inkscape) when the app pops up warnings in the middle of the demonstration.

I've got a (very) little bit of python experience, but since I'm completely unfamiliar with the inkscape extension architecture, I can't make sense of where the warnings are generated and why.

I'd be willing to test or help in any way to get this solved.

ps. The word 'exactly' is spelled incorrectly in the perspective.py file in the debug message about the 2nd object being four nodes long. [line 53 in the latest patched perspective.py file]