Reading package lists...
Building dependency tree...
Reading state information...
You might want to run 'apt-get -f install' to correct these:
The following packages have unmet dependencies:
 hexchat-python : Depends: hexchat-python3 but it is not going to be installed
 libretro-desmume : Depends: libtinyxml2.6.2 but it is not going to be installed
 libretro-ffmpeg : Depends: libass4 (>= 0.9.11) but it is not going to be installed
 retroarch : Depends: libcg (>= 3.0.0007) but it is not going to be installed
             Depends: libcggl (>= 3.0.0007) but it is not going to be installed
             Depends: libopenal1 (>= 1:1.13) but it is not going to be installed
             Depends: libsdl2-2.0-0 (>= 2.0.0) but it is not going to be installed
 retroarch-cg2glsl : Depends: nvidia-cg-toolkit but it is not going to be installed
E: Unmet dependencies. Try 'apt-get -f install' with no packages (or specify a solution).