package apache2 2.4.25-3ubuntu2.3 failed to install/upgrade: subprocess installed post-installation script returned error exit status 1

[Anthony Cox]

Was doing apt-get upgrade as sudo user

ProblemType: Package
DistroRelease: Ubuntu 17.04
Package: apache2 2.4.25-3ubuntu2.3
ProcVersionSignature: Ubuntu 4.10.0-35.39-generic 4.10.17
Uname: Linux 4.10.0-35-generic x86_64
Apache2ConfdDirListing: False
ApportVersion: 2.20.4-0ubuntu4.5
Architecture: amd64
Date: Fri Sep 22 15:12:15 2017
ErrorMessage: subprocess installed post-installation script returned error exit status 1
InstallationDate: Installed on 2017-07-16 (68 days ago)
InstallationMedia: Ubuntu 17.04 "Zesty Zapus" - Release amd64 (20170412)
RelatedPackageVersions:
 dpkg 1.18.10ubuntu2
 apt 1.4.6~17.04.1
SourcePackage: apache2
Title: package apache2 2.4.25-3ubuntu2.3 failed to install/upgrade: subprocess installed post-installation script returned error exit status 1
UpgradeStatus: No upgrade log present (probably fresh install)
modified.conffile..etc.apache2.apache2.conf: [modified]
mtime.conffile..etc.apache2.apache2.conf: 2017-09-19T00:34:55.033607

[Launchpad Janitor (janitor)]

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

[Joshua Powers (powersj)]

From log:

info: Executing deferred 'a2enconf apache2-doc' for package apache2-doc
ERROR: Conf apache2-doc does not exist!

[Joshua Powers (powersj)]

Thank you for taking the time to file a bug report.

I tried reproducing on a fresh zesty lxc image and was unable to:

Enabling site 000-default.
info: Executing deferred 'a2enconf apache2-doc' for package apache2-doc
Enabling conf apache2-doc.
Created symlink /etc/systemd/system/multi-user.target.wants/apache2.service → /lib/systemd/system/apache2.service.
Created symlink /etc/systemd/system/multi-user.target.wants/apache-htcacheclean.service → /lib/systemd/system/apache-htcacheclean.service.
Processing triggers for libc-bin (2.24-9ubuntu2.2) ...
Processing triggers for ureadahead (0.100.0-19) ...
Processing triggers for systemd (232-21ubuntu7.1) ...
Processing triggers for ufw (0.35-4) ...

Since it seems likely to me that this is a local configuration problem,
rather than a bug in Ubuntu, I am marking this bug as 'Incomplete'.

However, if you believe that this is really a bug in Ubuntu, then we would
be grateful if you would provide a more complete description of the problem
with steps to reproduce, explain why you believe this is a bug in Ubuntu
rather than a problem specific to your system, and then change the bug
status back to "New".

For local configuration issues, you can find assistance here:
http://www.ubuntu.com/support/community

[Launchpad Janitor (janitor)]

[Expired for apache2 (Ubuntu) because there has been no activity for 60 days.]