package gconf2-common 3.2.6-3ubuntu5 failed to install/upgrade: subprocess installed post-installation script returned error exit status 128

[Jordi BoschM]

PC is a portable one , MSI GE62 2QD Apache Pro, the error appeared while updating packages
Initially i installed Ubuntu 15.1 beta 2. This is the second time upgrading packages takes time.

Description: Ubuntu 15.10
Release: 15.10

jordi@sirera:~$ apt-cache policy gconf2-common
gconf2-common:
  Instaŀlat: 3.2.6-3ubuntu5
  Candidat: 3.2.6-3ubuntu5
  Taula de versió:
 *** 3.2.6-3ubuntu5 0
        500 http://archive.ubuntu.com/ubuntu/ wily/main amd64 Packages
        100 /var/lib/dpkg/status
jordi@sirera:~$

i was expecting the packages upgrade run without problem

Thanks a lot for your time!

Best regards.

ProblemType: Package
DistroRelease: Ubuntu 15.10
Package: gconf2-common 3.2.6-3ubuntu5
ProcVersionSignature: Ubuntu 4.2.0-16.19-generic 4.2.3
Uname: Linux 4.2.0-16-generic x86_64
ApportVersion: 2.19.1-0ubuntu3
Architecture: amd64
Date: Thu Oct 22 19:52:15 2015
DuplicateSignature: package:gconf2-common:3.2.6-3ubuntu5:subprocess installed post-installation script returned error exit status 128
ErrorMessage: subprocess installed post-installation script returned error exit status 128
InstallationDate: Installed on 2015-10-03 (19 days ago)
InstallationMedia: Ubuntu 15.10 "Wily Werewolf" - Alpha amd64 (20150924)
PackageArchitecture: all
RelatedPackageVersions:
 dpkg 1.18.2ubuntu5
 apt 1.0.10.2ubuntu1
SourcePackage: gconf
Title: package gconf2-common 3.2.6-3ubuntu5 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.