package clamav-base 0.97 dfsg-2ubuntu1 failed to install/upgrade: subprocesso script post-installation instalado retornou erro do status de saída 1

[Hugo]

I try to install using Synaptic and give me an error

ProblemType: Package
DistroRelease: Ubuntu 11.04
Package: clamav-base 0.97+dfsg-2ubuntu1
ProcVersionSignature: Ubuntu 2.6.38-10.46-generic 2.6.38.7
Uname: Linux 2.6.38-10-generic i686
Architecture: i386
Date: Tue Jul 19 11:23:27 2011
ErrorMessage: subprocesso script post-installation instalado retornou erro do status de saída 1
InstallationMedia: Ubuntu 11.04 "Natty Narwhal" - Release i386 (20110427.1)
PackageArchitecture: all
SourcePackage: clamav
Title: package clamav-base 0.97+dfsg-2ubuntu1 failed to install/upgrade: subprocesso script post-installation instalado retornou erro do status de saída 1
UpgradeStatus: No upgrade log present (probably fresh install)

[Imre Gergely (cemc)]

adduser: O utilizador `clamav' já existe. A sair.

It says that the clamav user already exists. Try purging the clamav-base package, and reinstalling clamav. Open a terminal, and type:

sudo apt-get purge clamav-base

After that you can reinstall clamav. If you did change the clamav configuration, you should back up /etc/clamav/clamd.conf .

[Launchpad Janitor (janitor)]

[Expired for clamav (Ubuntu) because there has been no activity for 60 days.]