Comment 3 for bug 585673

Thanks for your report. The basic problem here is that man-db's trigger uses debconf to decide whether to update the manual page database, but debconf is not always reliably usable in triggers. I finally figured out a simple way to avoid this problem, which I'm tracking as bug 1372673. If you are still affected by this locally (which I realise is unlikely in the case of some of the older bugs of this type), then running "sudo dpkg --configure -a && sudo apt-get -f install" in a terminal should normally be enough to get the package management system back to a sensible state.