"Import Clip Art" fails with "The specified location is not supported"

[Mattia Rizzolo]

With inkscape 0.92.3, in Debian unstable as of today, if I try to import a clip art I get this error message as soon as I hit "search":

** (inkscape:30175): WARNING **: 11:18:01.407: ImportDialog::on_xml_file_read():
 Failed to retrieve 'http://openclipart.org/media/feed/rss/foo'
 The specified location is not supported

Similarly, I received a bug report https://bugs.debian.org/906589 claiming an "Operation not supported" instead.

I found several similar bugs, but they were all somewhat old referring to the GVFS time and somewhat workarounded by installing some gvfs component. I could reproduce that error both while building with and without GVFS.

[Patrick Storz (ede123)]

Could this have been an intermittent problem (i.e. server problems or similar on openclipart.org's side)?

I can't seem to reproduce the problem in Inkscape 0.92.3 (2405546, 2018-03-11) on Windows 10.

[Mattia Rizzolo (mapreri)]

Not quite, it seems to be pretty consistent to me here.

I welcome further instructions on how to better debug the situation.

[Patrick Storz (ede123)]

Hmm, we use glibmm for fetching the RSS feed, specifically
- Gio::File::create_for_uri()
- Gio::File::load_contents_async()

The relevant code is in src/ui/dialog/ocaldialogs.cpp

Not sure this is something that can be fixed in Inkscape. It seems a problem in glib/glibmm and/or the way they're built seems more likely?

[mray (mrayyyy)]

Closing because I can't reproduce this on Inkscape 1.0alpha on Ubuntu. Importing cliparts worked for me.

Closed by: https://gitlab.com/mray

[Mattia Rizzolo (mapreri)]

Interestingly, I also can't reproduce it anymore (neither with 0.92.4 not 1.0~alpha).

Thanks for closing.