package libgksu2-0 2.0.13~pre1-6ubuntu8 failed to install/upgrade: package libgksu2-0 is already installed and configured

[Harsh Rajesh Chandak]

i tried to use the command- gksu nautilus, then it showed
to install it first by the command- sudo apt install gksu
when i tried the command it was showing matlab interface configuration

ProblemType: Package
DistroRelease: Ubuntu 16.04
Package: libgksu2-0 2.0.13~pre1-6ubuntu8
ProcVersionSignature: Ubuntu 4.4.0-58.79-generic 4.4.35
Uname: Linux 4.4.0-58-generic x86_64
ApportVersion: 2.20.1-0ubuntu2.4
AptOrdering:
 matlab-support: Remove
 libgksu2-0: Configure
 gksu: Configure
 NULL: ConfigurePending
AptdaemonVersion: 1.1.1+bzr982-0ubuntu14
Architecture: amd64
CrashReports:
 644:0:116:0:2017-01-06 04:10:06.183362751 +0530:2017-01-06 04:10:06.183362751 +0530:/var/crash/gksu.0.upload
 600:109:116:0:2017-01-06 04:10:27.451363478 +0530:2017-01-06 04:10:27.451363478 +0530:/var/crash/gksu.0.uploaded
 640:0:116:2792437:2017-01-06 04:09:58.247362613 +0530:2017-01-06 04:09:59.247362613 +0530:/var/crash/gksu.0.crash
 600:0:116:491619:2017-01-06 04:09:30.091361522 +0530:2017-01-06 04:09:31.091361522 +0530:/var/crash/libgksu2-0.0.crash
 600:0:116:469113:2017-01-04 19:04:08.515367207 +0530:2017-01-06 04:04:28.659351203 +0530:/var/crash/matlab-support.0.crash
Date: Fri Jan 6 04:09:30 2017
DuplicateSignature:
 package:libgksu2-0:2.0.13~pre1-6ubuntu8
 Processing triggers for hicolor-icon-theme (0.15-0ubuntu1) ...
 dpkg: error processing package libgksu2-0 (--configure):
  package libgksu2-0 is already installed and configured
ErrorMessage: package libgksu2-0 is already installed and configured
InstallationDate: Installed on 2017-01-04 (1 days ago)
InstallationMedia: Ubuntu 16.04.1 LTS "Xenial Xerus" - Release amd64 (20160719)
RelatedPackageVersions:
 dpkg 1.18.4ubuntu1.1
 apt 1.2.18
SourcePackage: dpkg
Title: package libgksu2-0 2.0.13~pre1-6ubuntu8 failed to install/upgrade: package libgksu2-0 is already installed and configured
UpgradeStatus: No upgrade log present (probably fresh install)