There should exist a fix to the meld3 which causes the problem with the line: "from xml.etree.ElementTree import fixtag"
I havent found the fix, but used the following workaround (in a terminal) : sudo apt-get install python-setuptools sudo apt-get install python-setuptools sudo easy_install elementtree -- You received this bug notification because you are a member of Ubuntu Bugs, which is subscribed to Ubuntu. https://bugs.launchpad.net/bugs/776210 Title: package supervisor 3.0a8-1 failed to install/upgrade: le sous- processus script post-installation installé a retourné une erreur de sortie d'état 1 -- ubuntu-bugs mailing list ubuntu-bugs@lists.ubuntu.com https://lists.ubuntu.com/mailman/listinfo/ubuntu-bugs