update-manager crashed with NotAuthorizedError in _run(): org.freedesktop.PolicyKit.Error.NotAuthorized: ('system-bus-name', {'name': ':1.42'}): org.debian.apt.upgrade-packages

[Gustavo Guidorizzi]

Binary package hint: update-manager

1)Description: Ubuntu Natty (development branch)
Release: 11.04

2) update-manager:
  Instalado: 1:0.146.1
  Candidato: 1:0.146.1
  Tabela de versão:
 *** 1:0.146.1 0
        500 http://br.archive.ubuntu.com/ubuntu/ natty/main amd64 Packages
        100 /var/lib/dpkg/status

(3) I was performing a routine package update.

(4) An error message appeared when I entered my password, which was refused.

Note: Running Natty on VirtualBox 4.0.4

ProblemType: Crash
DistroRelease: Ubuntu 11.04
Package: update-manager 1:0.146.1
ProcVersionSignature: Ubuntu 2.6.38-5.32-generic 2.6.38-rc6
Uname: Linux 2.6.38-5-generic x86_64
Architecture: amd64
Date: Thu Mar 3 06:05:50 2011
ExecutablePath: /usr/bin/update-manager
InstallationMedia: Ubuntu 11.04 "Natty Narwhal" - Alpha amd64 (20110228)
InterpreterPath: /usr/bin/python2.7
PackageArchitecture: all
ProcCmdline: /usr/bin/python2.7 /usr/bin/update-manager
ProcEnviron:
 LANGUAGE=pt_BR:en_US:en
 LANG=pt_BR.UTF-8
 SHELL=/bin/bash
PythonArgs: ['/usr/bin/update-manager']
SourcePackage: update-manager
Title: update-manager crashed with NotAuthorizedError in _run(): org.freedesktop.PolicyKit.Error.NotAuthorized: ('system-bus-name', {'name': ':1.42'}): org.debian.apt.upgrade-packages
UpgradeStatus: No upgrade log present (probably fresh install)
UserGroups: adm admin cdrom dialout lpadmin plugdev sambashare

[Apport retracing service (apport)]

Thank you for taking the time to report this crash and helping to make Ubuntu better. This particular crash has already been reported and is a duplicate of bug #704667, so is being marked as such. Please look at the other bug report to see if there is any missing information that you can provide, or to see if there is a workaround for the bug. Additionally, any further discussion regarding the bug should occur in the other report. Please continue to report any other bugs you may find.