trackerd can not register D-BUS connection

[i-blis]

Binary package hint: tracker

When lauching trackerd I get the following output :

Tracker version 0.5.4
...
tracker_dbus_init() could not get the session bus
process 26531: arguments to dbus_connection_register_object_path() were incorrect, assertion "connection != NULL" failed in file dbus-connection.c line 5071.
This is normally a bug in some application using the D-Bus library.
could not register local D-BUS connection handler

However dbus-daemon (ver. 1.0.2) is running and handles correctly with other processes

Because tracker could not get the dbus connection, I do not have any access to search (though my files are correctly indexed):
$ tracker-search blahblah
tracker-search: no connection to tracker daemon
Ensure "trackerd" is running before launch this command.

(As mentioned before trackerd is running but can not communicate trhough dbus) Any ideas?

I am running Ubuntu Feisty (7.04) and Beryl 0.2.1

Edit : In fact, it may also be related to dbus itself:

iblis@asa48:~/.Tracker$ dbus-launch
DBUS_SESSION_BUS_ADDRESS=unix:abstract=/tmp/dbus-PWCTcZjbh5,guid=6f5a6232d688862f87d62100462df110
DBUS_SESSION_BUS_PID=30400
iblis@asa48:~/.Tracker$ dbus-monitor
Failed to open connection to session message bus: Failed to execute dbus-launch to autolaunch D-Bus session

[Jamie McCracken (jamiemcc-blueyonder)]

this bug is fixed upstream or in my case not reproducible (assuming a working dbus session bus)

[Sebastien Bacher (seb128)]

 tracker (0.6.0-1) unstable; urgency=low
 .
   * New upstream release.
     - Uses XDG directories to store the settings, cache, database and log
       files. Closes: #414860
     - Fixes the crash of the deskbar applet at session start. Closes: #434078
     - Does not fall back to polling when the inotify limit is exceeded.
       Closes: #412089
     - Correctly uses xdg-open to open the search results with the preferred
       application. This requires the xdg-utils package to be installed, which
       is a Recommends of tracker-search-tool. Closes: 415705
   * Removed debian/man/ as the man pages are now shipped upstream.
     Update tracker.manpages, tracker-search-tool.manpages and
     tracker-utils.manpages accordingly.
   * Removed patches that were applied upstream or are now obsolete
     - debian/patches/20-trackerd_manpage.patch
     - debian/patches/30-deskbar_plugin_max_results.patch
     - debian/patches/40-inotify_syscalls.patch
     - debian/patches/50-expand_pathname.patch
     - debian/patches/60-check_pointer.patch
     - debian/patches/70-check_magic_file_results.patch
   * debian/copyright
     - The htmless sources are not shipped anymore and the qdbm sources are now
       in a separate subdirectory. Update the copyright file accordingly.
   * debian/libtracker-gtk-dev.install, debian/libtracker-gtk0.install
     - Added. libtracker-gtk is a new library that provides handy GTK+ widgets
       for applications that use tracker.
   * debian/control
     - Drop libmagic-dev from Build-Depends, add libunac1-dev and libqdbm-dev.
     - Add djvulibre-bin and gnumeric to Suggests. They are used as external
       filters for indexing djvu, csv and spreadsheet documents.
     - Add binary packages libtracker-gtk0 and libtracker-gtk-dev.
     - Update the long description of tracker-utils and include the new tool
       "tracker-status".
     - Add binary package tracker-dbg which provides the debugging symbols of
       trackerd and its utilities. Closes: #412140
   * debian/rules
     - Make sure we link against the system qdbm library.
     - Enable the support for libunac.
     - Explicitly enable the compilation of the GUI, the preferences applet
       and libtracker-gtk.