package redmine 2.3.1-1 failed to install/upgrade: le sous-processus script post-installation installé a retourné une erreur de sortie d'état 1

due to an upgrade from ubuntu 13.04 to 13.10

ProblemType: Package
DistroRelease: Ubuntu 13.10
Package: redmine 2.3.1-1
ProcVersionSignature: Ubuntu 3.11.0-14.21-generic 3.11.7
Uname: Linux 3.11.0-14-generic x86_64
ApportVersion: 2.12.5-0ubuntu2.1
Architecture: amd64
Date: Sat Dec 7 15:11:37 2013
DuplicateSignature: package:redmine:2.3.1-1:le sous-processus script post-installation installé a retourné une erreur de sortie d'état 1
ErrorMessage: le sous-processus script post-installation installé a retourné une erreur de sortie d'état 1
InstallationDate: Installed on 2013-04-12 (239 days ago)
InstallationMedia: Ubuntu 12.10 "Quantal Quetzal" - Release amd64 (20121017.5)
MarkForUpload: True
PackageArchitecture: all
SourcePackage: redmine
Title: package redmine 2.3.1-1 failed to install/upgrade: le sous-processus script post-installation installé a retourné une erreur de sortie d'état 1
UpgradeStatus: Upgraded to saucy on 2013-11-28 (9 days ago)