package dwww 1.12.0 failed to install/upgrade: subprocess installed post-installation script returned error exit status 128

[Brian Postans]

Error appears at login. First time having installed this package. Have had no experience with it before.
Installed via Ubuntu Software Center as a suggested add-on for Synaptic Package Manager.
 Debian Documentation Browser (dwww)

ProblemType: Package
DistroRelease: Ubuntu 13.10
Package: dwww 1.12.0
ProcVersionSignature: Ubuntu 3.11.0-12.19-generic 3.11.3
Uname: Linux 3.11.0-12-generic i686
ApportVersion: 2.12.5-0ubuntu2
Architecture: i386
Date: Sun Mar 9 01:22:37 2014
DuplicateSignature: package:dwww:1.12.0:subprocess installed post-installation script returned error exit status 128
ErrorMessage: subprocess installed post-installation script returned error exit status 128
InstallationDate: Installed on 2014-03-09 (7 days ago)
InstallationMedia: Xubuntu 13.10 "Saucy Salamander" - Release i386 (20131016)
MarkForUpload: True
SourcePackage: dwww
Title: package dwww 1.12.0 failed to install/upgrade: subprocess installed post-installation script returned error exit status 128
UpgradeStatus: No upgrade log present (probably fresh install)

[Launchpad Janitor (janitor)]

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