sugar-session crashed with GError in /usr/lib/python2.7/dist-packages/sugar/graphics/style.py: L'activation du serveur de configuration a échoué : The name org.gnome.GConf was not provided by any .service files

[steinhauser christian]

after boot

ProblemType: Crash
DistroRelease: Ubuntu 12.04
Package: sugar-session-0.88 0.88.1-5ubuntu1
ProcVersionSignature: Ubuntu 3.2.0-2.5-generic 3.2.0-rc3
Uname: Linux 3.2.0-2-generic x86_64
ApportVersion: 1.90-0ubuntu1
Architecture: amd64
Date: Tue Dec 27 00:36:31 2011
ExecutablePath: /usr/bin/sugar-session
InstallationMedia: Ubuntu 12.04 LTS "Precise Pangolin" - Alpha amd64 (20111129.1)
InterpreterPath: /usr/bin/python2.7
PackageArchitecture: all
ProcCmdline: python /usr/bin/sugar-session
ProcEnviron:
 LANGUAGE=fr_FR.UTF-8
 PATH=(custom, no user)
 LANG=fr_FR.UTF-8
 SHELL=/bin/bash
PythonArgs: ['/usr/bin/sugar-session']
SourcePackage: sugar-0.88
Title: sugar-session crashed with GError in /usr/lib/python2.7/dist-packages/sugar/graphics/style.py: L'activation du serveur de configuration a échoué : The name org.gnome.GConf was not provided by any .service files
UpgradeStatus: No upgrade log present (probably fresh install)
UserGroups: adm cdrom dip lpadmin plugdev sambashare sudo
modified.conffile..etc.dbus.1.system.d.nm.user.settings.conf: [deleted]