Comment 2 for bug 1760128

This is trivial to reproduce by installing avahi-dnsconfd and then reinstalling it.

bdmurray@clean-xenial-amd64:~$ sudo apt-get install --reinstall avahi-dnsconfd
Reading package lists... Done
Building dependency tree
Reading state information... Done
0 upgraded, 0 newly installed, 1 reinstalled, 0 to remove and 0 not upgraded.
Need to get 0 B/14.2 kB of archives.
After this operation, 0 B of additional disk space will be used.
(Reading database ... 212825 files and directories currently installed.)
Preparing to unpack .../avahi-dnsconfd_0.6.32~rc+dfsg-1ubuntu2_amd64.deb ...
Job for avahi-daemon.socket canceled.
dpkg: warning: subprocess old pre-removal script returned error exit status 1
dpkg: trying script from the new package instead ...
Job for avahi-daemon.socket canceled.
dpkg: error processing archive /var/cache/apt/archives/avahi-dnsconfd_0.6.32~rc+dfsg-1ubuntu2_amd64.deb (--unpack):
 subprocess new pre-removal script returned error exit status 1
Errors were encountered while processing:
 /var/cache/apt/archives/avahi-dnsconfd_0.6.32~rc+dfsg-1ubuntu2_amd64.deb
E: Sub-process /usr/bin/dpkg returned an error code (1)