# apt-get update
# apt-get upgrade

... snip ...

You might want to run 'apt-get -f install' to correct these.
The following packages have unmet dependencies:
 libreoffice-calc : Depends: libreoffice-base-core (= 1:5.4.1~rc2-0ubuntu0.14.04.1~lo0) but 1:5.4.2~rc2-0ubuntu0.14.04.1~lo1 is installed
                    Depends: libreoffice-core (= 1:5.4.1~rc2-0ubuntu0.14.04.1~lo0) but 1:5.4.2~rc2-0ubuntu0.14.04.1~lo1 is installed
 libreoffice-core : Breaks: libreoffice-calc (< 1:5.4.2~rc2-0ubuntu0.14.04.1~lo1) but 1:5.4.1~rc2-0ubuntu0.14.04.1~lo0 is installed
                    Breaks: libreoffice-draw (< 1:5.4.2~rc2-0ubuntu0.14.04.1~lo1) but 1:5.4.1~rc2-0ubuntu0.14.04.1~lo0 is installed
                    Breaks: libreoffice-impress (< 1:5.4.2~rc2-0ubuntu0.14.04.1~lo1) but 1:5.4.1~rc2-0ubuntu0.14.04.1~lo0 is installed
 libreoffice-draw : Depends: libreoffice-core (= 1:5.4.1~rc2-0ubuntu0.14.04.1~lo0) but 1:5.4.2~rc2-0ubuntu0.14.04.1~lo1 is installed
 libreoffice-impress : Depends: libreoffice-core (= 1:5.4.1~rc2-0ubuntu0.14.04.1~lo0) but 1:5.4.2~rc2-0ubuntu0.14.04.1~lo1 is installed
E: Unmet dependencies. Try using -f.