package linux-image-generic-lts-vivid 3.19.0.33.20 failed to install/upgrade: package linux-image-generic-lts-vivid is already installed and configured

[Sarah]

Ubuntu prompted for a system update and I received this error.

ProblemType: Package
DistroRelease: Ubuntu 14.04
Package: linux-image-generic-lts-vivid 3.19.0.33.20
ProcVersionSignature: Ubuntu 3.19.0-33.38~14.04.1-generic 3.19.8-ckt7
Uname: Linux 3.19.0-33-generic x86_64
ApportVersion: 2.14.1-0ubuntu3.19
AptdaemonVersion: 1.1.1-1ubuntu5.2
Architecture: amd64
CrashReports:
 640:0:116:265937:2015-11-26 09:30:52.742589712 -0800:2015-11-26 09:30:53.742589712 -0800:/var/crash/linux-image-extra-3.19.0-33-generic.0.crash
 644:0:116:0:2015-11-26 09:30:54.946589708 -0800:2015-11-26 09:30:54.946589708 -0800:/var/crash/linux-image-extra-3.19.0-33-generic.0.upload
 640:0:116:105906:2015-11-24 19:53:51.799695730 -0800:2015-11-24 19:53:52.799695730 -0800:/var/crash/linux-image-generic-lts-vivid.0.crash
 600:109:116:0:2015-11-26 09:30:57.854589704 -0800:2015-11-26 09:30:57.854589704 -0800:/var/crash/linux-image-extra-3.19.0-33-generic.0.uploaded
 640:0:116:105909:2015-11-24 19:53:52.759695742 -0800:2015-11-24 19:53:52.395695736 -0800:/var/crash/linux-image-3.19.0-33-generic.0.crash
Date: Tue Nov 24 19:53:52 2015
DuplicateSignature: package:linux-image-generic-lts-vivid:3.19.0.33.20:package linux-image-generic-lts-vivid is already installed and configured
ErrorMessage: package linux-image-generic-lts-vivid is already installed and configured
InstallationDate: Installed on 2015-08-30 (87 days ago)
InstallationMedia: Ubuntu 14.04.3 LTS "Trusty Tahr" - Beta amd64 (20150805)
RelatedPackageVersions:
 dpkg 1.17.5ubuntu5.4
 apt 1.0.1ubuntu2.10
SourcePackage: dpkg
Title: package linux-image-generic-lts-vivid 3.19.0.33.20 failed to install/upgrade: package linux-image-generic-lts-vivid is already installed and configured
UpgradeStatus: No upgrade log present (probably fresh install)