package libpq-dev (not installed) failed to install/upgrade: trying to overwrite '/usr/bin/pg_config', which is also in package postgresql-common 154ubuntu1

[Marian]

Trying to install libaprutil1-dev required installation of libpq-dev that could not be installed due to a conflict with a PostgreSQL package.

ProblemType: Package
DistroRelease: Ubuntu 14.04
Package: libpq-dev (not installed)
ProcVersionSignature: Ubuntu 3.13.0-88.135-lowlatency 3.13.11-ckt39
Uname: Linux 3.13.0-88-lowlatency x86_64
ApportVersion: 2.14.1-0ubuntu3.21
AptOrdering:
 libpq-dev: Install
 libaprutil1-dev: Install
 libpq-dev: Configure
 libaprutil1-dev: Configure
Architecture: amd64
Date: Thu Jun 23 13:59:15 2016
DpkgTerminalLog:
 Preparing to unpack .../libpq-dev_9.3.13-0ubuntu0.14.04_amd64.deb ...
 Unpacking libpq-dev (9.3.13-0ubuntu0.14.04) ...
 dpkg: error processing archive /var/cache/apt/archives/libpq-dev_9.3.13-0ubuntu0.14.04_amd64.deb (--unpack):
  trying to overwrite '/usr/bin/pg_config', which is also in package postgresql-common 154ubuntu1
DuplicateSignature: package:libpq-dev:(not installed):trying to overwrite '/usr/bin/pg_config', which is also in package postgresql-common 154ubuntu1
ErrorMessage: trying to overwrite '/usr/bin/pg_config', which is also in package postgresql-common 154ubuntu1
InstallationDate: Installed on 2015-02-23 (485 days ago)
InstallationMedia: Ubuntu 14.04 LTS "Trusty Tahr" - Release amd64 (20140417)
RelatedPackageVersions:
 dpkg 1.17.5ubuntu5.6
 apt 1.0.1ubuntu2.14
SourcePackage: postgresql-9.3
SystemImageInfo: Error: [Errno 2] No such file or directory: 'system-image-cli'
Title: package libpq-dev (not installed) failed to install/upgrade: trying to overwrite '/usr/bin/pg_config', which is also in package postgresql-common 154ubuntu1
UpgradeStatus: No upgrade log present (probably fresh install)