Where did you find gnome-shell 2.91? In the official repo there are 2.28 and 2.31 anche Ricotz PPA is empty.
I got this error too on a fully upgraded natty installation. -- [Natty] JS ERROR: Typelib version mismatch; expected 4, found 3 https://bugs.launchpad.net/bugs/664512 You received this bug notification because you are a member of Ubuntu Bugs, which is subscribed to Ubuntu. -- ubuntu-bugs mailing list ubuntu-bugs@lists.ubuntu.com https://lists.ubuntu.com/mailman/listinfo/ubuntu-bugs