jockey-gtk crashed with DBusException in call_blocking()

Jockey-gtk package crashed during installation of ubuntu 10.04 alpha1 and blocked any possibility of installation.

The source package I found the bug is:

        500 http://archive.ubuntu.com lucid/main Packages
        100 /var/lib/dpkg/status

1) the release of ubuntu I'm using is Ubuntu lucid (development branch)
2) the version of the package is jockey-gtk 0.5.5-0ubuntu2
3) I expected to install this alpha version of ubuntu unr
4) I cannot do it, and I don't know why

ProblemType: Crash
.var.log.jockey.log:

Architecture: i386
Date: Thu Dec 10 09:25:08 2009
DistroRelease: Ubuntu 10.04
ExecutablePath: /usr/bin/jockey-gtk
InterpreterPath: /usr/bin/python2.6
LiveMediaBuild: Ubuntu-Netbook-Remix 10.04 "Lucid Lynx" - Alpha i386 (20091130)
MachineType: DIODE Clip
Package: jockey-gtk 0.5.5-0ubuntu2
PackageArchitecture: all
ProcCmdLine: BOOT_IMAGE=/casper/vmlinuz noprompt cdrom-detect/try-usb=true persistent file=/cdrom/preseed/netbook-remix.seed boot=casper only-ubiquity initrd=/casper/initrd.lz quiet splash -- debian-installer/language=ca console-setup/layoutcode?=es console-setup/variantcode?=cat
ProcCmdline: /usr/bin/python /usr/bin/jockey-gtk --check 60
ProcEnviron:
 LANG=ca_ES.UTF-8
 SHELL=/bin/bash
ProcVersionSignature: Ubuntu 2.6.32-5.6-generic
PythonArgs: ['/usr/bin/jockey-gtk', '--check', '60']
SourcePackage: jockey
Tags: ubuntu-unr
Title: jockey-gtk crashed with DBusException in call_blocking()
Uname: Linux 2.6.32-5-generic i686
UserGroups: adm admin cdrom dialout lpadmin plugdev sambashare
dmi.bios.date: 12/19/2008
dmi.bios.vendor: American Megatrends Inc.
dmi.bios.version: 4.6.3
dmi.board.asset.tag: To be filled by O.E.M.
dmi.board.name: Clip
dmi.board.vendor: DIODE
dmi.board.version: Ver.001
dmi.chassis.asset.tag: To Be Filled By O.E.M.
dmi.chassis.type: 3
dmi.chassis.vendor: DIODE
dmi.chassis.version: Ver.001
dmi.modalias: dmi:bvnAmericanMegatrendsInc.:bvr4.6.3:bd12/19/2008:svnDIODE:pnClip:pvrVer.001:rvnDIODE:rnClip:rvrVer.001:cvnDIODE:ct3:cvrVer.001:
dmi.product.name: Clip
dmi.product.version: Ver.001
dmi.sys.vendor: DIODE