package cpp-5 5.4.0-6ubuntu1~16.04.4 failed to install/upgrade: package cpp-5 is already installed and configured

I don't know. But my media player is unable to install updates

ProblemType: Package
DistroRelease: Ubuntu 16.04
Package: cpp-5 5.4.0-6ubuntu1~16.04.4
ProcVersionSignature: Ubuntu 4.4.0-31.50-generic 4.4.13
Uname: Linux 4.4.0-31-generic x86_64
ApportVersion: 2.20.1-0ubuntu2.1
AptdaemonVersion: 1.1.1+bzr982-0ubuntu14
Architecture: amd64
CrashReports:
 600:0:116:128522:2017-05-11 00:18:03.726445913 +0530:2017-05-11 00:18:04.726445913 +0530:/var/crash/cpp-5.0.crash
 600:0:116:128540:2017-05-11 00:18:04.762446910 +0530:2017-05-11 00:18:04.726446028 +0530:/var/crash/libcc1-0:amd64.0.crash
 600:0:116:128540:2017-05-11 00:18:04.774447204 +0530:2017-05-11 00:18:04.762446910 +0530:/var/crash/libgomp1:amd64.0.crash
Date: Thu May 11 00:18:04 2017
DuplicateSignature:
 package:cpp-5:5.4.0-6ubuntu1~16.04.4
 Processing triggers for libc-bin (2.23-0ubuntu3) ...
 dpkg: error processing package cpp-5 (--configure):
  package cpp-5 is already installed and configured
ErrorMessage: package cpp-5 is already installed and configured
InstallationDate: Installed on 2017-03-31 (40 days ago)
InstallationMedia: Ubuntu 16.04.1 LTS "Xenial Xerus" - Release amd64 (20160719)
RelatedPackageVersions:
 dpkg 1.18.4ubuntu1.1
 apt 1.2.12~ubuntu16.04.1
SourcePackage: dpkg
Title: package cpp-5 5.4.0-6ubuntu1~16.04.4 failed to install/upgrade: package cpp-5 is already installed and configured
UpgradeStatus: No upgrade log present (probably fresh install)