package nano 2.5.3-2ubuntu2 failed to install/upgrade: package nano is already installed and configured

[gilles graton]

I am totally new to linux and don't understand nothing of it

ProblemType: Package
DistroRelease: Ubuntu 16.04
Package: nano 2.5.3-2ubuntu2
ProcVersionSignature: Ubuntu 4.8.0-54.57~16.04.1-lowlatency 4.8.17
Uname: Linux 4.8.0-54-lowlatency x86_64
ApportVersion: 2.20.1-0ubuntu2.6
AptdaemonVersion: 1.1.1+bzr982-0ubuntu14
Architecture: amd64
Date: Mon Jun 19 16:19:53 2017
DuplicateSignature:
 package:nano:2.5.3-2ubuntu2
 Unpacking gstreamer1.0-plugins-ugly:amd64 (1.8.3-1ubuntu0.1) ...
 dpkg: error processing package libpci3:amd64 (--configure):
  package libpci3:amd64 is already installed and configured
ErrorMessage: package nano is already installed and configured
InstallationDate: Installed on 2017-05-16 (34 days ago)
InstallationMedia: Ubuntu-Studio 16.04.2 LTS "Xenial Xerus" - Release amd64 (20170215)
RelatedPackageVersions:
 dpkg 1.18.4ubuntu1.2
 apt 1.2.20
SourcePackage: dpkg
Title: package nano 2.5.3-2ubuntu2 failed to install/upgrade: package nano is already installed and configured
UpgradeStatus: No upgrade log present (probably fresh install)