$ LANGUAGE=C sudo apt-get -o Debug::pkgProblemResolver=true dist-upgrade
Reading package lists... Done
Building dependency tree       
Reading state information... Done
You might want to run 'apt-get -f install' to correct these.
The following packages have unmet dependencies:
 libdebconf-kde1 : Depends: debconf-kde-data (= 1.0.1-0ubuntu1) but it is not installed
E: Unmet dependencies. Try using -f.