package libnss3-nssdb 2:3.23-0ubuntu0.14.04.1 failed to install/upgrade: package libnss3-nssdb is already installed and configured

[Paul Gibson]

Running MythBuntu (14.04.2 LTS) and I think the update stalled. I get a system problem message whenever I reboot now (and while the system is running).

ProblemType: Package
DistroRelease: Ubuntu 14.04
Package: libnss3-nssdb 2:3.23-0ubuntu0.14.04.1
ProcVersionSignature: Ubuntu 3.16.0-77.99~14.04.1-generic 3.16.7-ckt27
Uname: Linux 3.16.0-77-generic x86_64
NonfreeKernelModules: nvidia
ApportVersion: 2.14.1-0ubuntu3.23
AptdaemonVersion: 1.1.1-1ubuntu5.2
Architecture: amd64
CrashReports:
 640:1000:1000:56565:2016-12-23 17:45:14.097370840 -0700:2016-12-23 17:47:44.254496000 -0700:/var/crash/_usr_bin_mythbuntu-control-centre.1000.crash
 600:0:0:297016:2016-12-23 22:10:43.483110904 -0700:2016-12-23 22:10:44.483110904 -0700:/var/crash/libnss3-nssdb.0.crash
 600:0:0:297016:2016-12-23 22:10:44.511110404 -0700:2016-12-23 22:10:44.487110780 -0700:/var/crash/libnss3:amd64.0.crash
 600:0:0:297047:2016-12-23 22:10:44.583109274 -0700:2016-12-23 22:10:44.535110027 -0700:/var/crash/chromium-browser.0.crash
Date: Fri Dec 23 22:10:44 2016
DuplicateSignature: package:libnss3-nssdb:2:3.23-0ubuntu0.14.04.1:package libnss3-nssdb is already installed and configured
ErrorMessage: package libnss3-nssdb is already installed and configured
InstallationDate: Installed on 2016-12-23 (0 days ago)
InstallationMedia: Mythbuntu 14.04.2 LTS "Trusty Tahr" - Release amd64 (20150218.1)
PackageArchitecture: all
RelatedPackageVersions:
 dpkg 1.17.5ubuntu5.7
 apt 1.0.1ubuntu2.17
SourcePackage: dpkg
Title: package libnss3-nssdb 2:3.23-0ubuntu0.14.04.1 failed to install/upgrade: package libnss3-nssdb is already installed and configured
UpgradeStatus: No upgrade log present (probably fresh install)