package samba4 4.0.0~alpha18.dfsg1-4ubuntu2 failed to install/upgrade: le sous-processus script post-installation installé a retourné une erreur de sortie d'état 126

[sinbad83]

Error while installing samba

ProblemType: Package
DistroRelease: Ubuntu 12.04
Package: samba4 4.0.0~alpha18.dfsg1-4ubuntu2
ProcVersionSignature: Ubuntu 3.2.0-32.51-generic-pae 3.2.30
Uname: Linux 3.2.0-32-generic-pae i686
ApportVersion: 2.0.1-0ubuntu13
AptOrdering:
 libauthen-pam-perl: Install
 libio-pty-perl: Install
 samba4: Configure
 libauthen-pam-perl: Configure
 libio-pty-perl: Configure
Architecture: i386
Date: Tue Oct 16 15:12:14 2012
ErrorMessage: le sous-processus script post-installation installé a retourné une erreur de sortie d'état 126
InstallationMedia: Ubuntu 12.04 LTS "Precise Pangolin" - Release i386 (20120423)
SourcePackage: samba4
Title: package samba4 4.0.0~alpha18.dfsg1-4ubuntu2 failed to install/upgrade: le sous-processus script post-installation installé a retourné une erreur de sortie d'état 126
UpgradeStatus: No upgrade log present (probably fresh install)