Comment 17 for bug 1278863

This error is produced because before the installation you didn't removed the gnome ppa along with the packages. This is evident since those package gnome-settings-daemon 3.10.2-0ubuntu1~saucy6 is not present in saucy repositories, but in gnome PPA's. You can try removing one by one using dpkg all those packages ending in saucy, remove all the PPA repositories and use aptitude remove '?version(*saucy*)' if you have it installed, or reinstall your system.