package jetty 6.1.24-6ubuntu0.12.04.1 failed to install/upgrade: subprocess installed post-installation script returned error exit status 1

error while updating the system

ProblemType: Package
DistroRelease: Ubuntu 12.04
Package: jetty 6.1.24-6ubuntu0.12.04.1
ProcVersionSignature: Ubuntu 3.2.0-27.43-generic 3.2.21
Uname: Linux 3.2.0-27-generic i686
ApportVersion: 2.0.1-0ubuntu11
AptOrdering: jetty: Configure
Architecture: i386
Date: Tue Jul 24 12:55:03 2012
ErrorMessage: subprocess installed post-installation script returned error exit status 1
PackageArchitecture: all
SourcePackage: jetty
Title: package jetty 6.1.24-6ubuntu0.12.04.1 failed to install/upgrade: subprocess installed post-installation script returned error exit status 1
UpgradeStatus: Upgraded to precise on 2012-06-07 (47 days ago)
mtime.conffile..etc.default.jetty: 2012-06-07T12:10:23.936445