package libmng2:amd64 2.0.2-0ubuntu3 failed to install/upgrade: O pacote está num mau estado de inconsistência; deve reinstala-lo antes de tentar configura-lo.

[Augusto Fontes]

i don't know what is that but, my computer tells me that everyday.

ProblemType: Package
DistroRelease: Ubuntu 16.04
Package: libmng2:amd64 2.0.2-0ubuntu3
ProcVersionSignature: Ubuntu 4.10.0-28.32~16.04.2-generic 4.10.17
Uname: Linux 4.10.0-28-generic x86_64
ApportVersion: 2.20.1-0ubuntu2.10
Architecture: amd64
Date: Thu Aug 10 22:01:23 2017
ErrorMessage: O pacote está num mau estado de inconsistência; deve reinstala-lo antes de tentar configura-lo.
InstallationDate: Installed on 2017-06-21 (50 days ago)
InstallationMedia: Ubuntu-GNOME 16.04.2 LTS "Xenial Xerus" - Release amd64 (20170215)
RelatedPackageVersions:
 dpkg 1.18.4ubuntu1.2
 apt 1.2.24
SourcePackage: libmng
Title: package libmng2:amd64 2.0.2-0ubuntu3 failed to install/upgrade: O pacote está num mau estado de inconsistência; deve reinstala-lo antes de tentar configura-lo.
UpgradeStatus: No upgrade log present (probably fresh install)