package linux-image-3.19.0-43-generic 3.19.0-43.49~14.04.1 failed to install/upgrade: package linux-image-3.19.0-43-generic is already installed and configured

[Isu69]

I am a beginner in Linux. Maybe I was wrong.
I tried to install Flightgear under Ubuntu 14.04 LTS.
During automatic installation it crashed.

ProblemType: Package
DistroRelease: Ubuntu 14.04
Package: linux-image-3.19.0-43-generic 3.19.0-43.49~14.04.1
ProcVersionSignature: Ubuntu 3.19.0-42.48~14.04.1-generic 3.19.8-ckt10
Uname: Linux 3.19.0-42-generic x86_64
ApportVersion: 2.14.1-0ubuntu3.19
AptdaemonVersion: 1.1.1-1ubuntu5.2
Architecture: amd64
Date: Thu Jan 7 08:37:40 2016
DuplicateSignature: package:linux-image-3.19.0-43-generic:3.19.0-43.49~14.04.1:package linux-image-3.19.0-43-generic is already installed and configured
ErrorMessage: package linux-image-3.19.0-43-generic is already installed and configured
InstallationDate: Installed on 2015-09-27 (101 days ago)
InstallationMedia: Ubuntu 14.04.3 LTS "Trusty Tahr" - Beta amd64 (20150805)
RelatedPackageVersions:
 dpkg 1.17.5ubuntu5.5
 apt 1.0.1ubuntu2.10
SourcePackage: dpkg
Title: package linux-image-3.19.0-43-generic 3.19.0-43.49~14.04.1 failed to install/upgrade: package linux-image-3.19.0-43-generic is already installed and configured
UpgradeStatus: No upgrade log present (probably fresh install)