xfce4-appfinder error in terminal

It gives me the following error in terminal when I run xfce4-appfinder.
The “Preferred Applications” does not appear in menu to the “Options Manager”
error is:

"ceata crismblog # xfce4-appfinder

(xfce4-appfinder:7045): xfce4-appfinder-WARNING ****: Unable to open D-Bus connection: Did not receive a reply. Possible causes include: the remote application did not send a reply, the message bus security policy blocked the reply, the reply timeout expired, or the network connection was broken.

(xfce4-appfinder:7045): xfce4-appfinder-CRITICAL ****: Failed to initialized xfconf: Did not receive a reply. Possible causes include: the remote application did not send a reply, the message bus security policy blocked the reply, the reply timeout expired, or the network connection was broken."

Hello,

Just in a terminal launch

exo-preferred-applications

to obtain that :
http://docs.xfce.org/xfce/exo/preferred-applications

Thanks

XKomodor | Julien

Thanks