package apport 1.20.1-0ubuntu4 failed to install/upgrade: subprocess installed post-installation script returned error exit status 1

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Binary package hint: apport

Description: Ubuntu Natty (development branch)
Release: 11.04

ProblemType: Package
DistroRelease: Ubuntu 11.04
Package: apport 1.20.1-0ubuntu4
ProcVersionSignature: Ubuntu 2.6.38-8.42-generic 2.6.38.2
Uname: Linux 2.6.38-8-generic i686
NonfreeKernelModules: nvidia
Architecture: i386
CrashReports:
 600:1000:1000:7013557:2011-04-12 10:37:38.736409000 -0700:2011-04-12 10:37:39.736409000 -0700:/var/crash/_usr_bin_compiz.1000.crash
 600:0:0:570917:2011-04-20 16:00:00.090873000 -0700:2011-04-20 16:47:04.059143251 -0700:/var/crash/apport.0.crash
 600:0:0:17803:2011-04-18 07:39:44.634309000 -0700:2011-04-18 07:39:45.634309000 -0700:/var/crash/_usr_sbin_aptd.e7d403780ab7482490655da755d27956.crash
 600:0:0:913802:2011-04-17 10:29:12.994641000 -0700:2011-04-17 10:29:13.994641000 -0700:/var/crash/_sbin_plymouthd.0.crash
 600:1000:1000:887307:2011-04-15 16:06:44.378881000 -0700:2011-04-15 16:06:45.378881000 -0700:/var/crash/_usr_bin_mail-notification.1000.crash
Date: Wed Apr 20 16:00:00 2011
ErrorMessage: subprocess installed post-installation script returned error exit status 1
InstallationMedia: Ubuntu 11.04 "Natty Narwhal" - Beta i386 (20110330)
PackageArchitecture: all
SourcePackage: apport
Title: package apport 1.20.1-0ubuntu4 failed to install/upgrade: subprocess installed post-installation script returned error exit status 1
UpgradeStatus: Upgraded to natty on 2011-04-14 (6 days ago)