Using sudo leafpad in terminal gives a (slightly) more informative answer;
sudo leafpad /etc/sysconfig/apmd (leafpad:7423): IBUS-WARNING **: The owner of /home/mise/.config/ibus/bus is not root! It seems to confirm Daniel's research findings. -- You received this bug notification because you are a member of Desktop Packages, which is subscribed to gedit in Ubuntu. https://bugs.launchpad.net/bugs/1575484 Title: "Set document metadata failed" Status in gedit package in Ubuntu: Incomplete Bug description: Whenever I edit a document via the Terminal, I get these error messages: ** (gedit:12864): WARNING **: Set document metadata failed: Setting attribute metadata::gedit-spell-enabled not supported ** (gedit:12864): WARNING **: Set document metadata failed: Setting attribute metadata::gedit-encoding not supported ** (gedit:12864): WARNING **: Set document metadata failed: Setting attribute metadata::gedit-position not supported Info: OS: Ubuntu 16.04 (Xenial) x64 App version: 3.18.3 - Blossom To manage notifications about this bug go to: https://bugs.launchpad.net/ubuntu/+source/gedit/+bug/1575484/+subscriptions -- Mailing list: https://launchpad.net/~desktop-packages Post to : desktop-packages@lists.launchpad.net Unsubscribe : https://launchpad.net/~desktop-packages More help : https://help.launchpad.net/ListHelp
