Solved by reinstalling the package libtasn1-6:amd64 see https://answers.launchpad.net/ubuntu/+question/657133
** Changed in: libtasn1-6 (Ubuntu) Status: New => Invalid -- You received this bug notification because you are a member of Ubuntu Bugs, which is subscribed to Ubuntu. https://bugs.launchpad.net/bugs/1697075 Title: package libtasn1-6:amd64 4.7-3ubuntu0.16.04.2 failed to install/upgrade: package libtasn1-6:amd64 is not ready for configuration cannot configure (current status 'half-installed') To manage notifications about this bug go to: https://bugs.launchpad.net/ubuntu/+source/libtasn1-6/+bug/1697075/+subscriptions -- ubuntu-bugs mailing list ubuntu-bugs@lists.ubuntu.com https://lists.ubuntu.com/mailman/listinfo/ubuntu-bugs