package lightdm 1.18.3-0ubuntu1 failed to install/upgrade: package lightdm is already installed and configured

[walter]

I just getting this error when I log in in the system

ProblemType: Package
DistroRelease: Ubuntu 16.04
Package: lightdm 1.18.3-0ubuntu1
ProcVersionSignature: Ubuntu 4.4.0-51.72-generic 4.4.30
Uname: Linux 4.4.0-51-generic x86_64
ApportVersion: 2.20.1-0ubuntu2.1
AptdaemonVersion: 1.1.1+bzr982-0ubuntu14
Architecture: amd64
Date: Sat Dec 3 08:45:40 2016
ErrorMessage: package lightdm is already installed and configured
InstallationDate: Installed on 2016-12-02 (0 days ago)
InstallationMedia: Ubuntu 16.04.1 LTS "Xenial Xerus" - Release amd64 (20160719)
RelatedPackageVersions:
 dpkg 1.18.4ubuntu1.1
 apt 1.2.15
SourcePackage: dpkg
Title: package lightdm 1.18.3-0ubuntu1 failed to install/upgrade: package lightdm is already installed and configured
UpgradeStatus: No upgrade log present (probably fresh install)