package ppp 2.4.5-5.1ubuntu2.2 failed to install/upgrade: subprocess new pre-installation script returned error exit status 1

[Horea Aflat]

I upgrated from 14 to 16.04.
During installation I had a bug.
After installation I restated the computer and the desktop launch was broken in this bug.

ProblemType: Package
DistroRelease: Ubuntu 16.04
Package: ppp 2.4.5-5.1ubuntu2.2
ProcVersionSignature: Ubuntu 4.4.0-31.50-generic 4.4.13
Uname: Linux 4.4.0-31-generic x86_64
ApportVersion: 2.20.1-0ubuntu2.1
Architecture: amd64
Date: Thu Jul 28 20:23:17 2016
DuplicateSignature:
 package:ppp:2.4.5-5.1ubuntu2.2
 De-configuring network-manager (0.9.8.8-0ubuntu7.3) ...
 update-rc.d: /etc/init.d/pppd-dns exists during rc.d purge (use -f to force)
 dpkg: error processing archive /var/cache/apt/archives/ppp_2.4.7-1+2ubuntu1_amd64.deb (--unpack):
  subprocess new pre-installation script returned error exit status 1
ErrorMessage: subprocess new pre-installation script returned error exit status 1
InstallationDate: Installed on 2015-08-28 (335 days ago)
InstallationMedia: Ubuntu 14.04.3 LTS "Trusty Tahr" - Beta amd64 (20150805)
RelatedPackageVersions:
 dpkg 1.18.4ubuntu1.1
 apt 1.2.12~ubuntu16.04.1
SourcePackage: ppp
Title: package ppp 2.4.5-5.1ubuntu2.2 failed to install/upgrade: subprocess new pre-installation script returned error exit status 1
UpgradeStatus: Upgraded to xenial on 2016-07-29 (0 days ago)

[Launchpad Janitor (janitor)]

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

[Alberto Salvia Novella (es20490446e)]

Does this bug render the desktop useless?

When answered, please set status back to confirmed. Thank you.

[Horea Aflat (aflathorea)]

No, I could use the desktop.