It looks like something in adding Chromium to the list of browsers is failing. In addition, version 31 is the latest version, so I'm not sure why dpkg is trying to install version 30. Can you try the following?
sudo apt-get remove chromium-browser* sudo apt-get install chromium-browser -- You received this bug notification because you are a member of Ubuntu Bugs, which is subscribed to Ubuntu. https://bugs.launchpad.net/bugs/1263809 Title: package chromium-browser 30.0.1599.114-0ubuntu0.12.04.3 failed to install/upgrade: subprocess installed post-installation script returned error exit status 2 To manage notifications about this bug go to: https://bugs.launchpad.net/ubuntu/+source/chromium-browser/+bug/1263809/+subscriptions -- ubuntu-bugs mailing list ubuntu-bugs@lists.ubuntu.com https://lists.ubuntu.com/mailman/listinfo/ubuntu-bugs