Possible Duplicate:
How do I resolve unmet dependencies?
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You might want to run 'apt-get -f install' to correct these:
The following packages have unmet dependencies:
totem-plugins : Depends: libgnomeui-0 (>= 2.17.1) but it is not going to be installed
Depends: libtrackerclient0 (>= 0.6.6) but it is not installable
Depends: python-gdata but it is not going to be installed
Depends: totem-gstreamer (= 2.22.1-0ubuntu3.8.04.6) but it is not installable or
totem-xine (= 2.22.1-0ubuntu3.8.04.6) but it is not installable
E: Unmet dependencies. Try 'apt-get -f install' with no packages (or specify a solution).