package libavcodec-extra-54:amd64 6:9.18-0ubuntu0.14.04.1 failed to install/upgrade: package libavcodec-extra-54:amd64 is already installed and configured

[Pascal CHOUCHEN]

Tried to install EasyTag and pyRenamer

ProblemType: Package
DistroRelease: Ubuntu 14.04
Package: libavcodec-extra-54:amd64 6:9.18-0ubuntu0.14.04.1
ProcVersionSignature: Ubuntu 4.4.0-42.62~14.04.1-generic 4.4.21
Uname: Linux 4.4.0-42-generic x86_64
ApportVersion: 2.14.1-0ubuntu3.21
AptdaemonVersion: 1.1.1-1ubuntu5.2
Architecture: amd64
Date: Fri Oct 28 18:24:13 2016
DuplicateSignature: package:libavcodec-extra-54:amd64:6:9.18-0ubuntu0.14.04.1:package libavcodec-extra-54:amd64 is already installed and configured
ErrorMessage: package libavcodec-extra-54:amd64 is already installed and configured
InstallationDate: Installed on 2016-09-09 (49 days ago)
InstallationMedia: Ubuntu 14.04.5 LTS "Trusty Tahr" - Release amd64 (20160803)
RelatedPackageVersions:
 dpkg 1.17.5ubuntu5.7
 apt 1.0.1ubuntu2.14
SourcePackage: libav
Title: package libavcodec-extra-54:amd64 6:9.18-0ubuntu0.14.04.1 failed to install/upgrade: package libavcodec-extra-54:amd64 is already installed and configured
UpgradeStatus: No upgrade log present (probably fresh install)