package apport 1.21.3-0ubuntu4 failed to install/upgrade: subprocess installed post-installation script returned error exit status 101

[giorgio dolfo]

~$ lsb_release -rd
Description: Ubuntu oneiric (development branch)
Release: 11.10

~$ apt-cache policy apport
apport:
  Installato: 1.21.3-0ubuntu4
  Candidato: 1.21.3-0ubuntu4
  Tabella versione:
 *** 1.21.3-0ubuntu4 0
        500 http://it.archive.ubuntu.com/ubuntu/ oneiric/main i386 Packages
        100 /var/lib/dpkg/status

ProblemType: Package
DistroRelease: Ubuntu 11.10
Package: apport 1.21.3-0ubuntu4
ProcVersionSignature: Ubuntu 3.0.0-8.11-generic 3.0.1
Uname: Linux 3.0.0-8-generic i686
NonfreeKernelModules: nvidia
ApportLog:

Architecture: i386
Date: Wed Aug 17 20:37:33 2011
ErrorMessage: subprocess installed post-installation script returned error exit status 101
InstallationMedia: Ubuntu 11.10 "Oneiric Ocelot" - Alpha i386 (20110802.1)
PackageArchitecture: all
SourcePackage: apport
Title: package apport 1.21.3-0ubuntu4 failed to install/upgrade: subprocess installed post-installation script returned error exit status 101
UpgradeStatus: Upgraded to oneiric on 2011-08-20 (0 days ago)