package libapache2-mod-php5 5.5.9+dfsg-1ubuntu4.5 failed to install/upgrade: subprocess installed post-installation script returned error exit status 4

[Fernando Hevia]

Error presented when performing a dist-upgrade from 12.04 LTS to 14.04.1 LTS

# lsb_release -rd
Description: Ubuntu 14.04.1 LTS
Release: 14.04

# apt-cache policy libapache2-mod-php5
libapache2-mod-php5:
  Installed: 5.5.9+dfsg-1ubuntu4.5
  Candidate: 5.5.9+dfsg-1ubuntu4.5
  Version table:
 *** 5.5.9+dfsg-1ubuntu4.5 0
        500 http://us.archive.ubuntu.com/ubuntu/ trusty-updates/main amd64 Packages
        500 http://security.ubuntu.com/ubuntu/ trusty-security/main amd64 Packages
        100 /var/lib/dpkg/status
     5.5.9+dfsg-1ubuntu4 0
        500 http://us.archive.ubuntu.com/ubuntu/ trusty/main amd64 Packages

Expected the dist-upgrade to complete without issues but it ended with the following error:

~# do-release-upgrade
Checking for a new Ubuntu release
Get:1 Upgrade tool signature [198 B]
Get:2 Upgrade tool [1,146 kB]
Fetched 1,146 kB in 0s (0 B/s)
authenticate 'trusty.tar.gz' against 'trusty.tar.gz.gpg'
extracting 'trusty.tar.gz'
...
Setting up libapache2-mod-php5 (5.5.9+dfsg-1ubuntu4.5) ...
ucfr: Attempt from package libapache2-mod-php5 to take /etc/php5/apache2/php.ini away from package php5-cli
ucfr: Aborting.
dpkg: error processing package libapache2-mod-php5 (--configure):
 subprocess installed post-installation script returned error exit status 4
Errors were encountered while processing:
 libapache2-mod-php5

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ProblemType: Package
DistroRelease: Ubuntu 14.04
Package: libapache2-mod-php5 5.5.9+dfsg-1ubuntu4.5
ProcVersionSignature: Ubuntu 3.5.0-23.35~precise1-generic 3.5.7.2
Uname: Linux 3.5.0-23-generic x86_64
NonfreeKernelModules: hcpdriver
ApportVersion: 2.14.1-0ubuntu3.5
Architecture: amd64
Date: Thu Oct 30 19:27:25 2014
DuplicateSignature: package:libapache2-mod-php5:5.5.9+dfsg-1ubuntu4.5:subprocess installed post-installation script returned error exit status 4
ErrorMessage: subprocess installed post-installation script returned error exit status 4
SourcePackage: php5
Title: package libapache2-mod-php5 5.5.9+dfsg-1ubuntu4.5 failed to install/upgrade: subprocess installed post-installation script returned error exit status 4
UpgradeStatus: Upgraded to trusty on 2014-10-30 (0 days ago)

[Launchpad Janitor (janitor)]

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