sudo port install kdelibs4
--->  Computing dependencies for kdelibs4
--->  Activating kdelibs4 @4.8.1_0
Error: Target org.macports.activate returned: Image error: /opt/local/include/nepomuk/resourcewatcher.h is being used by the active kde4-runtime port.  Please deactivate this port first, or use 'port -f activate kdelibs4' to force the activation.
Log for kdelibs4 is at: /opt/local/var/macports/logs/_opt_local_var_macports_sources_rsync.macports.org_release_ports_kde_kdelibs4/kdelibs4/main.log
Error: Status 1 encountered during processing.
To report a bug, see <http://guide.macports.org/#project.tickets>