package apt-transport-https 1.2.15ubuntu0.2 failed to install/upgrade: package apt-transport-https is already installed and configured

[Mark Fisher]

Ubuntu Software window => Updates tab => OS Updates

The "OS Updates" listing never went away after selecting the Install button - the updates seem to have not taken place. I get the error messages when booting up Ubuntu after the "OS Updates" attempt.

Ubuntu 16.04.1 LTS

ProblemType: Package
DistroRelease: Ubuntu 16.04
Package: apt-transport-https 1.2.15ubuntu0.2
ProcVersionSignature: Ubuntu 4.4.0-53.74-generic 4.4.30
Uname: Linux 4.4.0-53-generic x86_64
ApportVersion: 2.20.1-0ubuntu2.4
AptdaemonVersion: 1.1.1+bzr982-0ubuntu14
Architecture: amd64
Date: Wed Dec 14 19:59:25 2016
DuplicateSignature:
 package:apt-transport-https:1.2.15ubuntu0.2
 Processing triggers for man-db (2.7.5-1) ...
 dpkg: error processing package libapt-inst2.0:amd64 (--configure):
  package libapt-inst2.0:amd64 is already installed and configured
ErrorMessage: package apt-transport-https is already installed and configured
InstallationDate: Installed on 2016-12-02 (13 days ago)
InstallationMedia: Ubuntu 16.04.1 LTS "Xenial Xerus" - Release amd64 (20160719)
RelatedPackageVersions:
 dpkg 1.18.4ubuntu1.1
 apt 1.2.15ubuntu0.2
SourcePackage: dpkg
Title: package apt-transport-https 1.2.15ubuntu0.2 failed to install/upgrade: package apt-transport-https is already installed and configured
UpgradeStatus: No upgrade log present (probably fresh install)

[Mark Fisher (n3n.pilot)]

After several attempts to update with following sequence:
Ubuntu Software window => Updates tab => OS Updates

The "OS Updates" seemed successful - it was no longer listed in the Updates tab and there were no error messages upon reboot. Problem seems to have fixed itself.