package openswan 1:2.6.28+dfsg-5ubuntu2 failed to install/upgrade: subprocess installed post-installation script returned error exit status 1

[daniel]

during the update process

ProblemType: Package
DistroRelease: Ubuntu 11.10
Package: openswan 1:2.6.28+dfsg-5ubuntu2
ProcVersionSignature: Ubuntu 3.0.0-11.18-generic 3.0.4
Uname: Linux 3.0.0-11-generic i686
NonfreeKernelModules: wl
ApportVersion: 1.23-0ubuntu1
Architecture: i386
Date: Mon Sep 19 21:05:01 2011
DuplicateSignature:
 Setting up openswan (1:2.6.28+dfsg-5ubuntu2) ...
 Error in creating X.509 certificate
 dpkg: error processing openswan (--configure):
  subprocess installed post-installation script returned error exit status 1
ErrorMessage: subprocess installed post-installation script returned error exit status 1
InstallationMedia: Ubuntu 11.04 "Natty Narwhal" - Release i386 (20110427.1)
SourcePackage: openswan
Title: package openswan 1:2.6.28+dfsg-5ubuntu2 failed to install/upgrade: subprocess installed post-installation script returned error exit status 1
UpgradeStatus: Upgraded to oneiric on 2011-09-18 (1 days ago)