package libavahi-core7:amd64 0.6.32~rc+dfsg-1ubuntu2 failed to install/upgrade: package is in a very bad inconsistent state; you should reinstall it before attempting configuration

[sachin agrawal]

i am unable to install softwares from ubuntu software.

ProblemType: Package
DistroRelease: Ubuntu 16.04
Package: libavahi-core7:amd64 0.6.32~rc+dfsg-1ubuntu2
ProcVersionSignature: Ubuntu 4.13.0-38.43~16.04.1-generic 4.13.16
Uname: Linux 4.13.0-38-generic x86_64
ApportVersion: 2.20.1-0ubuntu2.18
Architecture: amd64
Date: Wed Jul 18 02:53:43 2018
Dependencies:
 gcc-6-base 6.0.1-0ubuntu1
 libavahi-common-data 0.6.32~rc+dfsg-1ubuntu2.2
 libavahi-common3 0.6.32~rc+dfsg-1ubuntu2.2
 libc6 2.23-0ubuntu10
 libgcc1 1:6.0.1-0ubuntu1
DpkgHistoryLog:
 Start-Date: 2018-07-18 02:53:26
 Commandline: aptdaemon role='role-install-packages' sender=':1.75'
 Install: chromium-browser:amd64 (66.0.3359.181-0ubuntu0.16.04.1), chromium-codecs-ffmpeg-extra:amd64 (66.0.3359.181-0ubuntu0.16.04.1, automatic), chromium-browser-l10n:amd64 (66.0.3359.181-0ubuntu0.16.04.1, automatic)
DuplicateSignature:
 package:libavahi-core7:amd64:0.6.32~rc+dfsg-1ubuntu2
 Processing triggers for man-db (2.7.5-1) ...
 dpkg: error processing package libavahi-core7:amd64 (--configure):
  package is in a very bad inconsistent state; you should
ErrorMessage: package is in a very bad inconsistent state; you should reinstall it before attempting configuration
InstallationDate: Installed on 2018-01-12 (186 days ago)
InstallationMedia: Ubuntu 16.04.3 LTS "Xenial Xerus" - Release amd64 (20170801)
RelatedPackageVersions:
 dpkg 1.18.4ubuntu1.4
 apt 1.2.27
SourcePackage: avahi
Title: package libavahi-core7:amd64 0.6.32~rc+dfsg-1ubuntu2 failed to install/upgrade: package is in a very bad inconsistent state; you should reinstall it before attempting configuration
UpgradeStatus: No upgrade log present (probably fresh install)