package avahi-daemon 0.6.32~rc+dfsg-1ubuntu2 failed to install/upgrade: subprocess installed post-installation script returned error exit status 1

[Mattias]

I am forced to report bug. Don't know details

ProblemType: Package
DistroRelease: Ubuntu 16.04
Package: avahi-daemon 0.6.32~rc+dfsg-1ubuntu2
ProcVersionSignature: Ubuntu 3.2.0-23.36-generic 3.2.14
Uname: Linux 3.2.0-23-generic x86_64
ApportVersion: 2.20.1-0ubuntu2.15
Architecture: amd64
Date: Wed Jan 31 21:37:02 2018
ErrorMessage: subprocess installed post-installation script returned error exit status 1
InstallationDate: Installed on 2013-10-31 (1553 days ago)
InstallationMedia:

RelatedPackageVersions:
 dpkg 1.18.4ubuntu1.3
 apt 1.2.24
SourcePackage: avahi
Title: package avahi-daemon 0.6.32~rc+dfsg-1ubuntu2 failed to install/upgrade: subprocess installed post-installation script returned error exit status 1
UpgradeStatus: Upgraded to xenial on 2018-01-31 (0 days ago)

[Launchpad Janitor (janitor)]

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

[Col48 (col48)]

Now recurs with every software upgrade (perhaps because it failed before). Upgrade fails and times out.
Does not appear to affect system functioning - I have wireless printer but no network otherwise.
First happened within a week or so of 31 March 2018.

[Col48 (col48)]

happened today again with avahi update.