Comment 36 for bug 615902

A similar problem has occurred trying to upgrade to kde 4.5.1

aptitude full-install indicated that kde-full kde-standard and libqt4-multimedia were broken. After uninstalling those three packages I was able to upgrade everything else, however I am being prevented from upgrading (or reinstalling as is currently the case) libqt4-multimedia 4:4.7.0~beta2-0ubuntu3~lucid1~ppa6 because it depends on libqtcore4 = 4:4.7.0~beta2-0ubuntu3~lucid1~ppa6 but version 4:4.7.0~rc1-1ubuntu1~lucid1~ppa1 is to be installed AND it also depends on libqtgui4 = 4:4.7.0~beta2-0ubuntu3~lucid1~ppa6 but version 4:4.7.0~rc1-1ubuntu1~lucid1~ppa1 is to be installed.

kde-standard and kde-full were able to be successfully reinstalled however :)