dbus: can't start dbus-session launchagent

[torstensteinert@…]

I installed kdenlive on a fresh MacBook-Pro. After some problems with atlas it finished the install. According to ​http://www.kdenlive.org/user-manual/downloading-and-installing-kdenlive/pre-compiled-packages/mac-os-x-packages-macports I entered the post install commands. The second-to-last one failed with the error "Socket is not connected". Here is the output:

bash-3.2$ sudo chown -R torsten ~/Library/Preferences/KDE
bash-3.2$ sudo launchctl load -w /Library/LaunchAgents/org.freedesktop.dbus-session.plist
launchctl: Dubious ownership on file (skipping): /Library/LaunchAgents/org.freedesktop.dbus-session.plist
nothing found to load
bash-3.2$ sudo launchctl load -w /Library/LaunchDaemons/org.freedesktop.dbus-system.plist 
org.freedesktop.dbus-system: Already loaded
bash-3.2$ sudo chown torsten /Library/LaunchAgents/org.freedesktop.dbus-session.plist 
bash-3.2$ launchctl load -w /Library/LaunchAgents/org.freedesktop.dbus-session.plist 
Bug: launchctl.c:2325 (23930):13: (dbfd = open(g_job_overrides_db_path, O_RDONLY | O_EXLOCK | O_CREAT, S_IRUSR | S_IWUSR)) != -1
launch_msg(): Socket is not connected