package libpam-systemd:amd64 229-4ubuntu8 failed to install/upgrade: package libpam-systemd:amd64 is already installed and configured

[Adil]

I don't know about this error

ProblemType: Package
DistroRelease: Ubuntu 16.04
Package: libpam-systemd:amd64 229-4ubuntu8
ProcVersionSignature: Ubuntu 4.4.0-36.55-generic 4.4.16
Uname: Linux 4.4.0-36-generic x86_64
ApportVersion: 2.20.1-0ubuntu2.1
AptdaemonVersion: 1.1.1+bzr982-0ubuntu14
Architecture: amd64
CrashReports:
 640:0:116:552500:2016-09-16 09:26:16.835014581 +0400:2016-09-16 09:26:17.835014581 +0400:/var/crash/udev.0.crash
 644:0:116:0:2016-09-16 09:20:28.332574553 +0400:2016-09-16 09:20:28.332574553 +0400:/var/crash/_usr_bin_unattended-upgrade.0.upload
 600:0:116:110721:2016-09-16 09:25:52.272367000 +0400:2016-09-16 09:25:53.272367000 +0400:/var/crash/libpam-systemd:amd64.0.crash
 600:109:116:0:2016-09-16 09:20:30.456597003 +0400:2016-09-16 09:20:30.456597003 +0400:/var/crash/_usr_bin_unattended-upgrade.0.uploaded
 640:0:116:38267:2016-09-16 09:20:26.112574577 +0400:2016-09-16 09:20:27.112574577 +0400:/var/crash/_usr_bin_unattended-upgrade.0.crash
Date: Fri Sep 16 09:25:53 2016
DuplicateSignature:
 package:libpam-systemd:amd64:229-4ubuntu8
 Processing triggers for man-db (2.7.5-1) ...
 dpkg: error processing package udev (--configure):
  package udev is already installed and configured
ErrorMessage: package libpam-systemd:amd64 is already installed and configured
InstallationDate: Installed on 2016-06-30 (77 days ago)
InstallationMedia: Ubuntu 16.04 LTS "Xenial Xerus" - Release amd64 (20160420.1)
RelatedPackageVersions:
 dpkg 1.18.4ubuntu1.1
 apt 1.2.12~ubuntu16.04.1
SourcePackage: systemd
Title: package libpam-systemd:amd64 229-4ubuntu8 failed to install/upgrade: package libpam-systemd:amd64 is already installed and configured
UpgradeStatus: No upgrade log present (probably fresh install)