The same happened for me with opkg, which I installed into /usr/local; opkg brings its own, incompatible version of update-alternatives, and that got used by the dpkg maintainer scripts, and hence bails.
-- package ssh 1:4.7p1-4ubuntu1 failed to install/upgrade: Abh?ngigkeitsprobleme - lasse es unkonfiguriert https://bugs.launchpad.net/bugs/191895 You received this bug notification because you are a member of Ubuntu Bugs, which is subscribed to Ubuntu. -- ubuntu-bugs mailing list [email protected] https://lists.ubuntu.com/mailman/listinfo/ubuntu-bugs
