Comment 111 for bug 1642966

Here are log entries that result from the "sudo apt -t xenial-proposed install cups-daemon"

Preparing to unpack .../libcupsppdc1_2.1.3-4ubuntu0.2_amd64.deb ...
Unpacking libcupsppdc1:amd64 (2.1.3-4ubuntu0.2) over (2.1.3-4) ...
Preparing to unpack .../libcupsmime1_2.1.3-4ubuntu0.2_amd64.deb ...
Unpacking libcupsmime1:amd64 (2.1.3-4ubuntu0.2) over (2.1.3-4) ...
Preparing to unpack .../libcupsimage2_2.1.3-4ubuntu0.2_amd64.deb ...
Unpacking libcupsimage2:amd64 (2.1.3-4ubuntu0.2) over (2.1.3-4) ...
Preparing to unpack .../libcupscgi1_2.1.3-4ubuntu0.2_amd64.deb ...
Unpacking libcupscgi1:amd64 (2.1.3-4ubuntu0.2) over (2.1.3-4) ...
Preparing to unpack .../cups-core-drivers_2.1.3-4ubuntu0.2_amd64.deb ...
Unpacking cups-core-drivers (2.1.3-4ubuntu0.2) over (2.1.3-4) ...
Preparing to unpack .../cups-server-common_2.1.3-4ubuntu0.2_all.deb ...
Unpacking cups-server-common (2.1.3-4ubuntu0.2) over (2.1.3-4) ...
Preparing to unpack .../cups-common_2.1.3-4ubuntu0.2_all.deb ...
Unpacking cups-common (2.1.3-4ubuntu0.2) over (2.1.3-4) ...
Preparing to unpack .../cups-daemon_2.1.3-4ubuntu0.2_amd64.deb ...
Job for cups.service canceled.
invoke-rc.d: initscript cups, action "stop" failed.
dpkg: warning: subprocess old pre-removal script returned error exit status 1
dpkg: trying script from the new package instead ...
Job for cups.service canceled.
invoke-rc.d: initscript cups, action "stop" failed.
dpkg: error processing archive /var/cache/apt/archives/cups-daemon_2.1.3-4ubuntu0.2_amd64.deb (--unpack):
 subprocess new pre-removal script returned error exit status 1
Preparing to unpack .../cups-bsd_2.1.3-4ubuntu0.2_amd64.deb ...
Unpacking cups-bsd (2.1.3-4ubuntu0.2) over (2.1.3-4) ...
Preparing to unpack .../cups-client_2.1.3-4ubuntu0.2_amd64.deb ...
Unpacking cups-client (2.1.3-4ubuntu0.2) over (2.1.3-4) ...
Preparing to unpack .../libcups2_2.1.3-4ubuntu0.2_amd64.deb ...
Unpacking libcups2:amd64 (2.1.3-4ubuntu0.2) over (2.1.3-4) ...
Preparing to unpack .../cups_2.1.3-4ubuntu0.2_amd64.deb ...
Unpacking cups (2.1.3-4ubuntu0.2) over (2.1.3-4) ...
Processing triggers for libc-bin (2.23-0ubuntu9) ...
Processing triggers for doc-base (0.10.7) ...
Processing 1 changed doc-base file...
Processing triggers for man-db (2.7.5-1) ...
Errors were encountered while processing:
 /var/cache/apt/archives/cups-daemon_2.1.3-4ubuntu0.2_amd64.deb
Log ended: 2017-08-08 19:32:01

And here is what happens when I try to run "apt upgrade" after that:

il@il-VirtualBox:~$ sudo apt upgrade
Reading package lists... Done
Building dependency tree
Reading state information... Done
You might want to run 'apt-get -f install' to correct these.
The following packages have unmet dependencies:
 cups : Depends: cups-daemon (>= 2.1.3-4ubuntu0.2)
 cups-core-drivers : Depends: cups-daemon (>= 2.1.3-4ubuntu0.2)
 cups-daemon : Depends: libcups2 (= 2.1.3-4) but 2.1.3-4ubuntu0.2 is installed
E: Unmet dependencies. Try using -f.