package libepsilon1:amd64 0.9.2-2 failed to install/upgrade: package libepsilon1:amd64 is already installed and configured

[ghoshamitag]

showing continously a charsh window

ProblemType: Package
DistroRelease: Ubuntu 15.04
Package: libepsilon1:amd64 0.9.2-2
ProcVersionSignature: Ubuntu 3.19.0-18.18-generic 3.19.6
Uname: Linux 3.19.0-18-generic x86_64
ApportVersion: 2.17.2-0ubuntu1.1
AptdaemonVersion: 1.1.1+bzr982-0ubuntu3
Architecture: amd64
CrashReports:
 640:0:118:4626949:2015-05-29 15:56:42.905443906 +0530:2015-05-29 15:56:43.905443906 +0530:/var/crash/libdap11:amd64.0.crash
 600:0:118:355310:2015-05-29 15:56:12.401326894 +0530:2015-05-29 15:56:13.401326894 +0530:/var/crash/libepsilon1:amd64.0.crash
 600:0:118:354270:2015-05-29 15:56:13.369326766 +0530:2015-05-29 15:56:13.349326690 +0530:/var/crash/libdapclient3:amd64.0.crash
Date: Fri May 29 15:56:13 2015
Dependencies:
 gcc-5-base 5.1~rc1-0ubuntu1
 libc6 2.21-0ubuntu4
 libgcc1 1:5.1~rc1-0ubuntu1
 multiarch-support 2.21-0ubuntu4
DuplicateSignature: package:libepsilon1:amd64:0.9.2-2:package libepsilon1:amd64 is already installed and configured
ErrorMessage: package libepsilon1:amd64 is already installed and configured
InstallationDate: Installed on 2015-05-29 (0 days ago)
InstallationMedia: Ubuntu 15.04 "Vivid Vervet" - Release amd64 (20150422)
RelatedPackageVersions:
 dpkg 1.17.25ubuntu1
 apt 1.0.9.7ubuntu4
SourcePackage: libepsilon
Title: package libepsilon1:amd64 0.9.2-2 failed to install/upgrade: package libepsilon1:amd64 is already installed and configured
UpgradeStatus: No upgrade log present (probably fresh install)

[Launchpad Janitor (janitor)]

Status changed to 'Confirmed' because the bug affects multiple users.