There's clearly a mismatch between the Trac version (0.12) and the version of this plugin (0.11) in the Ubuntu repos.
Manually installing plugin version 0.12 from http://trac.edgewall.org/wiki/TracMercurial works for me. -- You received this bug notification because you are a member of Ubuntu Bugs, which is subscribed to Ubuntu. https://bugs.launchpad.net/bugs/874681 Title: Trac 0.12 doesn't work with mercurial repository. To manage notifications about this bug go to: https://bugs.launchpad.net/ubuntu/+source/trac-mercurial/+bug/874681/+subscriptions -- ubuntu-bugs mailing list ubuntu-bugs@lists.ubuntu.com https://lists.ubuntu.com/mailman/listinfo/ubuntu-bugs