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

[Ceará]

Stuck on this f#cking IPSEC VPN configuration and when I tryed to install the package sudo apt-get install l2tp-ipsec-vpn starts to fails. I'm falowing this tutorial: http://www.mattzuba.com/2011/04/l2tpipsec-in-ubuntu-10-04/

ProblemType: Package
DistroRelease: Ubuntu 11.04
Package: openswan-modules-dkms 1:2.6.28+dfsg-5
ProcVersionSignature: Ubuntu 2.6.38-11.48-generic 2.6.38.8
Uname: Linux 2.6.38-11-generic x86_64
Architecture: amd64
Date: Mon Sep 19 22:06:48 2011
ErrorMessage: subprocess installed post-installation script returned error exit status 1
InstallationMedia: Lenvyx Live CD - Release amd64
SourcePackage: openswan
Title: package openswan-modules-dkms 1:2.6.28+dfsg-5 failed to install/upgrade: subprocess installed post-installation script returned error exit status 1
UpgradeStatus: No upgrade log present (probably fresh install)

[Launchpad Janitor (janitor)]

Status changed to 'Confirmed' because the bug affects multiple users.