Looks like you have some ppa packages installed. Upgrades with ppa's installed are not supported, nor recommended. You should ppa-purge them before upgrading.
-- You received this bug notification because you are a member of Ubuntu Bugs, which is subscribed to Ubuntu. https://bugs.launchpad.net/bugs/1388989 Title: package gnome-control-center 1:3.12.1-5ubuntu2 failed to install/upgrade: trying to overwrite '/usr/share/bash- completion/completions/gnome-control-center', which is also in package gnome-control-center-data 1:3.10.1-0ubuntu1~saucy3 To manage notifications about this bug go to: https://bugs.launchpad.net/ubuntu/+source/gnome-control-center/+bug/1388989/+subscriptions -- ubuntu-bugs mailing list ubuntu-bugs@lists.ubuntu.com https://lists.ubuntu.com/mailman/listinfo/ubuntu-bugs