package keystone 2012.2.3+stable-20130206-82c87e56-0ubuntu2 failed to install/upgrade: le sous-processus script post-installation installé a retourné une erreur de sortie d'état 1

[halima]

how to install this package?

ProblemType: Package
DistroRelease: Ubuntu 12.10
Package: keystone 2012.2.3+stable-20130206-82c87e56-0ubuntu2
ProcVersionSignature: Ubuntu 3.5.0-28.48-generic 3.5.7.9
Uname: Linux 3.5.0-28-generic x86_64
ApportVersion: 2.6.1-0ubuntu10
Architecture: amd64
Date: Wed May 8 08:25:27 2013
ErrorMessage: le sous-processus script post-installation installé a retourné une erreur de sortie d'état 1
InstallationDate: Installed on 2013-05-07 (0 days ago)
InstallationMedia: Ubuntu-Server 12.10 "Quantal Quetzal" - Release amd64 (20121017.2)
MarkForUpload: True
PackageArchitecture: all
SourcePackage: keystone
Title: package keystone 2012.2.3+stable-20130206-82c87e56-0ubuntu2 failed to install/upgrade: le sous-processus script post-installation installé a retourné une erreur de sortie d'état 1
UpgradeStatus: No upgrade log present (probably fresh install)
modified.conffile..etc.keystone.keystone.conf: [modified]
modified.conffile..etc.keystone.logging.conf: [modified]
modified.conffile..etc.keystone.policy.json: [modified]
mtime.conffile..etc.keystone.keystone.conf: 2013-05-07T16:39:56.390877
mtime.conffile..etc.keystone.logging.conf: 2013-05-07T16:39:56.410877
mtime.conffile..etc.keystone.policy.json: 2013-05-07T16:19:03.362946

[Yolanda Robla (yolanda.robla)]

According to log, this problem seems to be related with sqlalchemy configuration . Please check your credentials and retry.