package libqpdf21:amd64 8.0.2-3~16.04.1 failed to install/upgrade: package libqpdf21:amd64 is already installed and configured

[James Franklin]

I don't know what program this dependency relates nor why it is crashing

ProblemType: Package
DistroRelease: Ubuntu 16.04
Package: libqpdf21:amd64 8.0.2-3~16.04.1
ProcVersionSignature: Ubuntu 4.8.0-36.36~16.04.1-generic 4.8.11
Uname: Linux 4.8.0-36-generic x86_64
ApportVersion: 2.20.1-0ubuntu2.18
AptdaemonVersion: 1.1.1+bzr982-0ubuntu14
Architecture: amd64
Date: Tue Oct 2 17:19:35 2018
DuplicateSignature:
 package:libqpdf21:amd64:8.0.2-3~16.04.1
 Processing triggers for mime-support (3.59ubuntu1) ...
 dpkg: error processing package libqpdf21:amd64 (--configure):
  package libqpdf21:amd64 is already installed and configured
ErrorMessage: package libqpdf21:amd64 is already installed and configured
InstallationDate: Installed on 2018-10-02 (0 days ago)
InstallationMedia: Ubuntu 16.04.2 LTS "Xenial Xerus" - Release amd64 (20170215.2)
RelatedPackageVersions:
 dpkg 1.18.4ubuntu1.4
 apt 1.2.27
SourcePackage: qpdf
Title: package libqpdf21:amd64 8.0.2-3~16.04.1 failed to install/upgrade: package libqpdf21:amd64 is already installed and configured
UpgradeStatus: No upgrade log present (probably fresh install)

[Till Kamppeter (till-kamppeter)]

Old.