package mpd 0.18.7-1 failed to install/upgrade: subprocess installed post-installation script returned error exit status 1

[Swinnen]

package mpd 0.18.7-1 failed to install

ProblemType: Package
DistroRelease: Ubuntu 14.04
Package: mpd 0.18.7-1
ProcVersionSignature: Ubuntu 3.13.0-66.108-generic 3.13.11-ckt27
Uname: Linux 3.13.0-66-generic i686
ApportVersion: 2.14.1-0ubuntu3.16
Architecture: i386
Date: Wed Oct 14 18:21:40 2015
DuplicateSignature: package:mpd:0.18.7-1:subprocess installed post-installation script returned error exit status 1
ErrorMessage: subprocess installed post-installation script returned error exit status 1
InstallationDate: Installed on 2014-05-29 (503 days ago)
InstallationMedia: Ubuntu 14.04 LTS "Trusty Tahr" - Release i386 (20140417)
RelatedPackageVersions:
 dpkg 1.17.5ubuntu5.4
 apt 1.0.1ubuntu2.10
SourcePackage: mpd
Title: package mpd 0.18.7-1 failed to install/upgrade: subprocess installed post-installation script returned error exit status 1
UpgradeStatus: No upgrade log present (probably fresh install)

[Launchpad Janitor (janitor)]

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

[Florian Schlichting (fschlich)]

postinst error message: "Failed to bind to '127.0.0.1:6600': Address already in use"

Any idea what could be running there?

[Launchpad Janitor (janitor)]

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