Please ensure /etc/default/locale is valid and also the package "locales" is correctly installed. If using any uncommon locales you will see messages of them not being available (to safe space). YOu might have to run "sudo locale-gen <LOCALE>" to regenerate these.
Overall it looks like a broken config to me, many packages complained about the bad LC settings. Just in mailmans case it was a fatal error instead of a warning as seen on your log https://launchpadlibrarian.net/386928267/DpkgTerminalLog.txt It might be worth to follow these suggestions: https://askubuntu.com/questions/599808/cannot-set-lc-ctype-to-default-locale-no-such-file-or-directory -- You received this bug notification because you are a member of Ubuntu Bugs, which is subscribed to Ubuntu. https://bugs.launchpad.net/bugs/1790811 Title: package mailman 1:2.1.26-1 failed to install/upgrade: installed mailman package post-installation script subprocess returned error exit status 1 To manage notifications about this bug go to: https://bugs.launchpad.net/ubuntu/+source/mailman/+bug/1790811/+subscriptions -- ubuntu-bugs mailing list [email protected] https://lists.ubuntu.com/mailman/listinfo/ubuntu-bugs
