package apport 1.20.1-0ubuntu3 failed to install/upgrade: subprocess installed post-installation script returned error exit status 1

[Thibaut Brandscheid]

Binary package hint: apport

Just tried to update my system. After installing most of the updates an error occurred leading me to this bug report.

Description: Ubuntu Natty (development branch)
Release: 11.04

update-manager:
  Installed: 1:0.150
  Candidate: 1:0.150
  Version table:
 *** 1:0.150 0
        500 http://archive.ubuntu.com/ubuntu/ natty/main i386 Packages
        100 /var/lib/dpkg/status

ProblemType: Package
DistroRelease: Ubuntu 11.04
Package: apport 1.20.1-0ubuntu3
ProcVersionSignature: Ubuntu 2.6.38-8.42-generic 2.6.38.2
Uname: Linux 2.6.38-8-generic i686
ApportLog:

AptOrdering:
 apport: Configure
 apport-gtk: Configure
Architecture: i386
CrashReports:
 600:1000:1000:1213302:2011-04-12 11:24:35.843023000 +0200:2011-04-12 11:24:36.843023000 +0200:/var/crash/_usr_lib_policykit-1-gnome_polkit-gnome-authentication-agent-1.1000.crash
 600:1000:1000:683349:2011-04-12 23:24:42.050011000 +0200:2011-04-12 23:24:51.789901548 +0200:/var/crash/_usr_lib_bamf_bamfdaemon.1000.crash
 600:1000:1000:43056:2011-04-18 17:52:07.612264000 +0200:2011-04-18 17:52:12.456215818 +0200:/var/crash/_usr_bin_gnome-activity-journal.1000.crash
 600:0:0:587392:2011-04-20 22:32:06.986372000 +0200:2011-04-20 22:32:25.110157063 +0200:/var/crash/apport.0.crash
Date: Wed Apr 20 22:32:05 2011
DpkgTerminalLog:
 Setting up apport (1.20.1-0ubuntu3) ...
 start: Job failed to start
 invoke-rc.d: initscript apport, action "start" failed.
 dpkg: error processing apport (--configure):
  subprocess installed post-installation script returned error exit status 1
ErrorMessage: subprocess installed post-installation script returned error exit status 1
InstallationMedia: Ubuntu 11.04 "Natty Narwhal" - Alpha i386 (20101202)
PackageArchitecture: all
SourcePackage: apport
Title: package apport 1.20.1-0ubuntu3 failed to install/upgrade: subprocess installed post-installation script returned error exit status 1
UpgradeStatus: Upgraded to natty on 2011-03-21 (30 days ago)