package libmono-system-security4.0-cil 4.2.1.102+dfsg2-7ubuntu4 failed to install/upgrade: package libmono-system-security4.0-cil is already installed and configured

[K Chandrasekhar Omkar]

Bug occured as soon as installing the package, even before it was launched.

ProblemType: Package
DistroRelease: Ubuntu 16.04
Package: libmono-system-security4.0-cil 4.2.1.102+dfsg2-7ubuntu4
ProcVersionSignature: Ubuntu 4.4.0-47.68-generic 4.4.24
Uname: Linux 4.4.0-47-generic x86_64
ApportVersion: 2.20.1-0ubuntu2.1
AptdaemonVersion: 1.1.1+bzr982-0ubuntu14
Architecture: amd64
Date: Sun Nov 20 12:14:16 2016
DuplicateSignature:
 package:libmono-system-security4.0-cil:4.2.1.102+dfsg2-7ubuntu4
 Processing triggers for hicolor-icon-theme (0.15-0ubuntu1) ...
 dpkg: error processing package bristol-data (--configure):
  package bristol-data is already installed and configured
ErrorMessage: package libmono-system-security4.0-cil is already installed and configured
InstallationDate: Installed on 2016-11-12 (8 days ago)
InstallationMedia: Ubuntu 14.04.3 LTS "Trusty Tahr" - Beta amd64 (20150805)
PackageArchitecture: all
RelatedPackageVersions:
 dpkg 1.18.4ubuntu1.1
 apt 1.2.15
SourcePackage: mono
Title: package libmono-system-security4.0-cil 4.2.1.102+dfsg2-7ubuntu4 failed to install/upgrade: package libmono-system-security4.0-cil is already installed and configured
UpgradeStatus: Upgraded to xenial on 2016-11-12 (7 days ago)