package phpbb3 (not installed) failed to install/upgrade: le sous-processus script pre-removal installé a retourné une erreur de sortie d'état 1

[azerty2012baudry]

I can't install phpbb3 because I have an error with mysql.

ProblemType: Package
DistroRelease: Ubuntu 12.04
Package: phpbb3 (not installed)
ProcVersionSignature: Ubuntu 3.2.0-31.50-generic 3.2.28
Uname: Linux 3.2.0-31-generic i686
ApportVersion: 2.0.1-0ubuntu13
AptOrdering: phpbb3: Remove
Architecture: i386
Date: Mon Oct 22 21:40:31 2012
ErrorMessage: le sous-processus script pre-removal installé a retourné une erreur de sortie d'état 1
InstallationMedia: Ubuntu 11.10 "Oneiric" - Build i386 LIVE Binary 20111013-11:02
SourcePackage: phpbb3
Title: package phpbb3 (not installed) failed to install/upgrade: le sous-processus script pre-removal installé a retourné une erreur de sortie d'état 1
UpgradeStatus: Upgraded to precise on 2012-10-09 (13 days ago)