package libjpeg62:amd64 6b1-4ubuntu1 failed to install/upgrade: package libjpeg62:amd64 is already installed and configured

[Scott Combrink]

E: dpkg was interrupted, you must manually run 'dpkg --configure -a' to correct the problem.
E: _cache->open() failed, please report.

ProblemType: Package
DistroRelease: Ubuntu 14.04
Package: libjpeg62:amd64 6b1-4ubuntu1
ProcVersionSignature: Ubuntu 3.19.0-58.64~14.04.1-generic 3.19.8-ckt16
Uname: Linux 3.19.0-58-generic x86_64
ApportVersion: 2.14.1-0ubuntu3.19
AptOrdering:
 synaptic: Remove
 libjpeg62: Configure
AptdaemonVersion: 1.1.1-1ubuntu5.2
Architecture: amd64
CrashReports: 600:0:116:78642:2016-09-07 20:47:23.550627946 +0000:2016-09-07 20:47:24.550627946 +0000:/var/crash/libjpeg62:amd64.0.crash
Date: Wed Sep 7 20:47:24 2016
Dependencies:
 gcc-4.9-base 4.9.3-0ubuntu4
 libc6 2.19-0ubuntu6.9
 libgcc1 1:4.9.3-0ubuntu4
 multiarch-support 2.19-0ubuntu6.9
DpkgHistoryLog:
 Start-Date: 2016-09-07 20:46:27
 Commandline: aptdaemon role='role-remove-packages' sender=':1.106'
 Remove: synaptic:amd64 (0.81.1ubuntu1)
DuplicateSignature: package:libjpeg62:amd64:6b1-4ubuntu1:package libjpeg62:amd64 is already installed and configured
ErrorMessage: package libjpeg62:amd64 is already installed and configured
InstallationDate: Installed on 2015-12-10 (272 days ago)
InstallationMedia: Ubuntu 14.04.3 LTS "Trusty Tahr" - Beta amd64 (20150805)
RelatedPackageVersions:
 dpkg 1.17.5ubuntu5.6
 apt 1.0.1ubuntu2.13
SourcePackage: dpkg
Title: package libjpeg62:amd64 6b1-4ubuntu1 failed to install/upgrade: package libjpeg62:amd64 is already installed and configured
UpgradeStatus: No upgrade log present (probably fresh install)