package libsdl1.2debian:amd64 1.2.15+dfsg1-3 failed to install/upgrade: package libsdl1.2debian:amd64 is already installed and configured

[Gourish bhat]

I was in the process of installing a train simulation game and this error appeared midway.

ProblemType: Package
DistroRelease: Ubuntu 16.04
Package: libsdl1.2debian:amd64 1.2.15+dfsg1-3
ProcVersionSignature: Ubuntu 4.4.0-66.87-generic 4.4.44
Uname: Linux 4.4.0-66-generic x86_64
ApportVersion: 2.20.1-0ubuntu2.5
AptdaemonVersion: 1.1.1+bzr982-0ubuntu14
Architecture: amd64
CrashReports:
 600:0:116:320423:2017-03-15 16:15:29.182954788 +0530:2017-03-15 16:15:30.182954788 +0530:/var/crash/libsdl1.2debian:amd64.0.crash
 600:0:116:320426:2017-03-15 16:15:29.198956489 +0530:2017-03-15 16:15:30.198956489 +0530:/var/crash/libsdl-image1.2:amd64.0.crash
 600:0:116:320409:2017-03-15 16:15:30.218958398 +0530:2017-03-15 16:15:30.202956807 +0530:/var/crash/libproxy-tools.0.crash
Date: Wed Mar 15 16:15:29 2017
ErrorMessage: package libsdl1.2debian:amd64 is already installed and configured
InstallationDate: Installed on 2017-03-13 (1 days ago)
InstallationMedia: Ubuntu 14.04.5 LTS "Trusty Tahr" - Release amd64 (20160803)
RelatedPackageVersions:
 dpkg 1.18.4ubuntu1.1
 apt 1.2.19
SourcePackage: dpkg
Title: package libsdl1.2debian:amd64 1.2.15+dfsg1-3 failed to install/upgrade: package libsdl1.2debian:amd64 is already installed and configured
UpgradeStatus: Upgraded to xenial on 2017-03-14 (1 days ago)