package libpam-cap:amd64 1:2.24-0ubuntu2 failed to install/upgrade: package libpam-cap:amd64 is already installed and configured

[Lindsey Bryan]

I upgraded from 14.04 to 16.04 and this error comes up.

ProblemType: Package
DistroRelease: Ubuntu 16.04
Package: libpam-cap:amd64 1:2.24-0ubuntu2
ProcVersionSignature: Ubuntu 4.4.0-186.216-generic 4.4.228
Uname: Linux 4.4.0-186-generic x86_64
ApportVersion: 2.20.1-0ubuntu2.23
AptdaemonVersion: 1.1.1+bzr982-0ubuntu14.3
Architecture: amd64
Date: Mon Aug 3 15:48:16 2020
DuplicateSignature:
 package:libpam-cap:amd64:1:2.24-0ubuntu2
 Setting up libp11-kit-gnome-keyring:amd64 (3.18.3-0ubuntu2.1) ...
 dpkg: error processing package libpam-cap:amd64 (--configure):
  package libpam-cap:amd64 is already installed and configured
ErrorMessage: package libpam-cap:amd64 is already installed and configured
InstallationDate: Installed on 2020-08-03 (0 days ago)
InstallationMedia: Ubuntu 14.04.6 LTS "Trusty Tahr" - Release amd64 (20190304.5)
RelatedPackageVersions:
 dpkg 1.18.4ubuntu1.6
 apt 1.2.32ubuntu0.1
SourcePackage: dpkg
Title: package libpam-cap:amd64 1:2.24-0ubuntu2 failed to install/upgrade: package libpam-cap:amd64 is already installed and configured
UpgradeStatus: Upgraded to xenial on 2020-08-03 (0 days ago)