The following packages have unmet dependencies:
 ubuntu-mate-core : Depends: libcanberra-pulse but it is not going to be installed
                    Depends: mate-desktop-environment-core but it is not going to be installed
                    Depends: mate-media-pulse but it is not going to be installed
                    Depends: mate-settings-daemon-pulse but it is not going to be installed
                    Depends: plymouth-theme-ubuntu-mate-logo but it is not going to be installed
                    Depends: xorg but it is not going to be installed