# emerge -uDpvt world These are the packages that would be merged, in reverse order: Calculating world dependencies !!! Multiple versions within a single package slot have been !!! pulled into the dependency graph: sys-apps/dbus-0.62-r1 sys-apps/dbus-1.0.2 It may be possible to solve this problem by using package.mask to prevent one of those packages from being selected. However, it is also possible that conflicting dependencies exist such that they are impossible to satisfy simultaneously. If such a conflict exists in the dependencies of two different packages, then those packages can not be installed simultaneously. For more information, see MASKED PACKAGES section in the emerge man page or refer to the Gentoo Handbook. !!! Problem resolving dependencies for net-www/mplayerplug-in !!! Depgraph creation failed. # emerge -pv mplayerplug-in These are the packages that would be merged, in order: Calculating dependencies ... done! [ebuild R ] net-www/mplayerplug-in-3.31-r1 USE="divx gmedia gtk quicktime realmedia wmp" 207 kB Total: 1 package (1 reinstall), Size of downloads: 207 kB # echo "> /etc/portage/package.mask # emerge -uDpvt world These are the packages that would be merged, in reverse order: Calculating world dependencies y !!! All ebuilds that could satisfy "