the work-around in comment 59 seems to work: https://bugs.launchpad.net/ubuntu/+source/gwibber/+bug/614742/comments/59
It basically says delete these directories: ~/.cache/desktop-couch ~/.config/desktop-couch ~/.local/share/desktop-couch
Then try again.
N.B: You may have to delete the gwibber directory as well (~/.config/gwibber) I deleted it before the others so, I don't know if it had any effect.
the work-around in comment 59 seems to work: /bugs.launchpad .net/ubuntu/ +source/ gwibber/ +bug/614742/ comments/ 59
https:/
It basically says delete these directories: desktop- couch desktop- couch share/desktop- couch
~/.cache/
~/.config/
~/.local/
Then try again.
N.B: You may have to delete the gwibber directory as well (~/.config/gwibber) I deleted it before the others so, I don't know if it had any effect.