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: build-essential: Depends: libc6-dev but it is not going to be installed or libc-dev Depends: g++ (>= 4:4.1.1) but it is not going to be installed Depends: dpkg-dev (>= 1.13.5) but it is not going to be installed debhelper: Depends: dpkg-dev (>= 1.13.13) but it is not going to be installed Depends: html2text but it is not going to be installed dh-make: Depends: dpkg-dev but it is not going to be installed E: Unmet dependencies. Try 'apt-get -f install' with no packages (or specify a solution).