package samba4 4.0.0~alpha18.dfsg1-4ubuntu2 failed to install/upgrade: el subproceso instalado el script post-installation devolvió el código de salida de error 126

[Eddy Montoto]

I installed samba trying to get access to a Windows network; then I tried to install samba4 and I got an error (smb.cfg not compatible)

ProblemType: Package
DistroRelease: Ubuntu 12.04
Package: samba4 4.0.0~alpha18.dfsg1-4ubuntu2
ProcVersionSignature: Ubuntu 3.2.0-38.61-generic-pae 3.2.37
Uname: Linux 3.2.0-38-generic-pae i686
ApportVersion: 2.0.1-0ubuntu17.1
Architecture: i386
Date: Sun Mar 17 12:47:20 2013
ErrorMessage: el subproceso instalado el script post-installation devolvió el código de salida de error 126
InstallationMedia: Ubuntu 12.04.1 LTS "Precise Pangolin" - Release i386 (20120817.3)
MarkForUpload: True
SourcePackage: samba4
Title: package samba4 4.0.0~alpha18.dfsg1-4ubuntu2 failed to install/upgrade: el subproceso instalado el script post-installation devolvió el código de salida de error 126
UpgradeStatus: No upgrade log present (probably fresh install)