*** This bug is a duplicate of bug 1505409 ***
https://bugs.launchpad.net/bugs/1505409
In Ubuntu with gnome worked for me:
gnome-session-properties=>disable "Welcome" entry
No more errors
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Bugs, which is
*** This bug is a duplicate of bug 1505409 ***
https://bugs.launchpad.net/bugs/1505409
Thank you for taking the time to report this crash and helping to make
this software better. This particular crash has already been reported
and is a duplicate of bug #1505409, so is being marked as such.