The Gtk and the KDE frontends have exactly the same problem, except the KDE frontend should not crash. See the fix in attachment. Then have a look at https://bugs.launchpad.net/ubuntu/+source/software-properties/+bug/769364
** Patch added: "i18nhelper_none_string.diff" https://bugs.launchpad.net/ubuntu/+source/software-properties/+bug/768363/+attachment/2084532/+files/i18nhelper_none_string.diff -- You received this bug notification because you are a member of Ubuntu Bugs, which is subscribed to Ubuntu. https://bugs.launchpad.net/bugs/768363 Title: Not able to change software origins in software-properties-kde - TypeError: coercing to Unicode: need string or buffer, NoneType found -- ubuntu-bugs mailing list ubuntu-bugs@lists.ubuntu.com https://lists.ubuntu.com/mailman/listinfo/ubuntu-bugs
