package libgtk-3-0:amd64 3.18.9-1ubuntu3.1 failed to install/upgrade: package libgtk-3-0:amd64 is already installed and configured

[Qnapp]

fresh install on a brand new recycled machine. just got some new parts from a friend after he upgraded.

ProblemType: Package
DistroRelease: Ubuntu 16.04
Package: libgtk-3-0:amd64 3.18.9-1ubuntu3.1
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:
 640:0:114:2139993:2016-09-13 19:04:11.963672161 -0500:2016-09-13 19:04:12.963672161 -0500:/var/crash/adwaita-icon-theme-full.0.crash
 600:0:114:342723:2016-09-13 19:01:43.578629970 -0500:2016-09-13 19:01:44.578629970 -0500:/var/crash/libgtk-3-0:amd64.0.crash
 644:0:114:0:2016-09-13 19:04:13.835687949 -0500:2016-09-13 19:04:13.835687949 -0500:/var/crash/adwaita-icon-theme-full.0.upload
 600:0:114:342715:2016-09-13 19:01:44.614630682 -0500:2016-09-13 19:01:44.578629977 -0500:/var/crash/libgtk-3-bin.0.crash
 600:108:114:0:2016-09-13 19:04:16.631736949 -0500:2016-09-13 19:04:16.631736949 -0500:/var/crash/adwaita-icon-theme-full.0.uploaded
Date: Tue Sep 13 19:01:44 2016
DuplicateSignature:
 package:libgtk-3-0:amd64:3.18.9-1ubuntu3.1
 Processing triggers for hicolor-icon-theme (0.15-0ubuntu1) ...
 dpkg: error processing package libgtk-3-0:amd64 (--configure):
  package libgtk-3-0:amd64 is already installed and configured
ErrorMessage: package libgtk-3-0:amd64 is already installed and configured
InstallationDate: Installed on 2016-09-13 (0 days ago)
InstallationMedia: Ubuntu-GNOME 16.04 LTS "Xenial Xerus" - Release amd64 (20160421)
RelatedPackageVersions:
 dpkg 1.18.4ubuntu1.1
 apt 1.2.12~ubuntu16.04.1
SourcePackage: dpkg
Title: package libgtk-3-0:amd64 3.18.9-1ubuntu3.1 failed to install/upgrade: package libgtk-3-0:amd64 is already installed and configured
UpgradeStatus: No upgrade log present (probably fresh install)