Thank you for taking the time to report this bug and helping to make Ubuntu better.
If you could provide the output of the following commands it may be helpful: > sudo apt clean > sudo apt update > sudo apt purge clamav-daemon If that works then try reinstalling clamav-daemon again. As you have pointed out your system is in an inconsistent state. Because the bug tracker is meant to track bugs found in Ubuntu and not general support, you may want to get help for this sort of problem here: http://www.ubuntu.com/support/community I am going to move this bug to 'Incomplete' for now since this does not appear to be a bug in Ubuntu. If you provide more details then please move the bug back to 'New'. ** Changed in: clamav (Ubuntu) Status: Confirmed => Incomplete -- You received this bug notification because you are a member of Ubuntu Bugs, which is subscribed to Ubuntu. https://bugs.launchpad.net/bugs/1604319 Title: package clamav-daemon 0.99+dfsg-1ubuntu1.1 failed to install/upgrade: package is in a very bad inconsistent state; you should reinstall it before attempting configuration To manage notifications about this bug go to: https://bugs.launchpad.net/ubuntu/+source/clamav/+bug/1604319/+subscriptions -- ubuntu-bugs mailing list ubuntu-bugs@lists.ubuntu.com https://lists.ubuntu.com/mailman/listinfo/ubuntu-bugs