package libfontconfig1 2.9.0-7 failed to install/upgrade: trying to overwrite shared '/usr/share/doc/libfontconfig1/copyright', which is different from other instances of package libfontconfig1:amd64

[Francisco Ortiz]

I installed old libraries by mistake, and I don't know how to fix it.

ProblemType: Package
DistroRelease: Ubuntu 14.04
Package: libfontconfig1 2.9.0-7
ProcVersionSignature: Ubuntu 3.13.0-128.177-generic 3.13.11-ckt39
Uname: Linux 3.13.0-128-generic x86_64
NonfreeKernelModules: nvidia_uvm nvidia_drm nvidia_modeset nvidia
ApportVersion: 2.14.1-0ubuntu3.25
Architecture: amd64
Date: Wed Nov 1 13:48:27 2017
DpkgHistoryLog:
 Start-Date: 2017-11-01 13:48:21
 Commandline: apt-get -f install
 Upgrade: libfontconfig1:amd64 (2.9.0-7, 2.11.0-0ubuntu4.2), libjbig0:amd64 (2.0-2, 2.0-2ubuntu4.1)
DpkgTerminalLog:
 Preparing to unpack .../libfontconfig1_2.11.0-0ubuntu4.2_amd64.deb ...
 Unpacking libfontconfig1:amd64 (2.11.0-0ubuntu4.2) over (2.9.0-7) ...
DuplicateSignature: package:libfontconfig1:2.9.0-7:trying to overwrite shared '/usr/share/doc/libfontconfig1/copyright', which is different from other instances of package libfontconfig1:amd64
ErrorMessage: trying to overwrite shared '/usr/share/doc/libfontconfig1/copyright', which is different from other instances of package libfontconfig1:amd64
InstallationDate: Installed on 2016-04-16 (564 days ago)
InstallationMedia: Ubuntu 14.04 LTS "Trusty Tahr" - Release amd64 (20140417)
RelatedPackageVersions:
 dpkg 1.17.5ubuntu5.7
 apt 1.0.1ubuntu2.17
SourcePackage: fontconfig
Title: package libfontconfig1 2.9.0-7 failed to install/upgrade: trying to overwrite shared '/usr/share/doc/libfontconfig1/copyright', which is different from other instances of package libfontconfig1:amd64
UpgradeStatus: No upgrade log present (probably fresh install)