How and why did you install the apt-config-auto-update package? update- notifier-common is part of all Ubuntu images by default; and apt-config- auto-update has an undeclared conflict with this package.
You should remove apt-config-auto-update with 'sudo apt purge apt- config-auto-update', and then reinstall update-notifier-common. And the update-notifier-common package should be updated to declare a Conflicts: against apt-config-auto-update. ** Changed in: update-notifier (Ubuntu) Status: New => Triaged ** Changed in: update-notifier (Ubuntu) Importance: Undecided => Low -- You received this bug notification because you are a member of Ubuntu Bugs, which is subscribed to Ubuntu. https://bugs.launchpad.net/bugs/1745743 Title: package update-notifier-common (not installed) failed to install/upgrade: s'està intentant sobreescriure «/etc/apt/apt.conf.d /15update-stamp», que també està en el paquet apt-config-auto-update 2.0.0-1 To manage notifications about this bug go to: https://bugs.launchpad.net/ubuntu/+source/update-notifier/+bug/1745743/+subscriptions -- ubuntu-bugs mailing list ubuntu-bugs@lists.ubuntu.com https://lists.ubuntu.com/mailman/listinfo/ubuntu-bugs