commenting out the Scripts/MendeleyDesktopAPI.py in the manifest makes the error go away, so the issue is clearly in that file.
** Changed in: libreoffice (Ubuntu) Status: Incomplete => New -- You received this bug notification because you are a member of Ubuntu Bugs, which is subscribed to Ubuntu. https://bugs.launchpad.net/bugs/1419836 Title: LibreOffice 4.4 (PPA): Extension can't be installed: Message: com.sun.star.uno.RuntimeException) "unknown error!" To manage notifications about this bug go to: https://bugs.launchpad.net/ubuntu/+source/libreoffice/+bug/1419836/+subscriptions -- ubuntu-bugs mailing list ubuntu-bugs@lists.ubuntu.com https://lists.ubuntu.com/mailman/listinfo/ubuntu-bugs