package autoconf 2.69-9 failed to install/upgrade: package autoconf is already installed and configured

[Geek A]

system isn't running normal. it just showing the desktop shortcuts.

ProblemType: Package
DistroRelease: Ubuntu 16.04
Package: autoconf 2.69-9
ProcVersionSignature: Ubuntu 4.4.0-51.72-generic 4.4.30
Uname: Linux 4.4.0-51-generic x86_64
NonfreeKernelModules: wl
ApportVersion: 2.20.1-0ubuntu2.1
AptdaemonVersion: 1.1.1+bzr982-0ubuntu14
Architecture: amd64
Date: Mon Dec 5 06:20:38 2016
DuplicateSignature:
 package:autoconf:2.69-9
 Processing triggers for mime-support (3.59ubuntu1) ...
 dpkg: error processing package libsigsegv2:amd64 (--configure):
  package libsigsegv2:amd64 is already installed and configured
ErrorMessage: package autoconf is already installed and configured
InstallationDate: Installed on 2016-12-04 (1 days ago)
InstallationMedia: Ubuntu 16.04.1 LTS "Xenial Xerus" - Release amd64 (20160719)
PackageArchitecture: all
RelatedPackageVersions:
 dpkg 1.18.4ubuntu1.1
 apt 1.2.15
SourcePackage: dpkg
Title: package autoconf 2.69-9 failed to install/upgrade: package autoconf is already installed and configured
UpgradeStatus: No upgrade log present (probably fresh install)