All these tracebacks seem to me as if there was a version mismatch between your viewer and daemon. This may be the case just after updates - since the daemon does not get restarted manually (you can do it manually by running killall -9 twistd and then restarting the viewer, or by simply logging off your system and then logging back in). Moreover, the GwibberGtk import error looks like something we've already fixed a day or two before. Therefore I recommend you to ensure the packages you are using are indeed the latest available (or if you wish, getting the source from branches), and that the daemon gets restarted after any updates.
If this still fails, it would be helpful if you provided us with the exact versions of the packages you are using (both viewer and daemon).
Thanks for this bug report!
All these tracebacks seem to me as if there was a version mismatch between your viewer and daemon. This may be the case just after updates - since the daemon does not get restarted manually (you can do it manually by running killall -9 twistd and then restarting the viewer, or by simply logging off your system and then logging back in). Moreover, the GwibberGtk import error looks like something we've already fixed a day or two before. Therefore I recommend you to ensure the packages you are using are indeed the latest available (or if you wish, getting the source from branches), and that the daemon gets restarted after any updates.
If this still fails, it would be helpful if you provided us with the exact versions of the packages you are using (both viewer and daemon).