package libmono-system-xml4.0-cil 3.2.8+dfsg-4ubuntu4 failed to install/upgrade: package libmono-system-xml4.0-cil is already installed and configured

[Tim Oates]

Using Synaptic to install a bunch of audio stuff.

ProblemType: Package
DistroRelease: Ubuntu 15.10
Package: libmono-system-xml4.0-cil 3.2.8+dfsg-4ubuntu4
ProcVersionSignature: Ubuntu 4.2.0-34.39~14.04.1-generic 4.2.8-ckt4
Uname: Linux 4.2.0-34-generic x86_64
ApportVersion: 2.19.1-0ubuntu5
AptdaemonVersion: 1.1.1+bzr982-0ubuntu14
Architecture: amd64
Date: Wed Mar 16 23:11:52 2016
DuplicateSignature: package:libmono-system-xml4.0-cil:3.2.8+dfsg-4ubuntu4:package libmono-system-xml4.0-cil is already installed and configured
ErrorMessage: package libmono-system-xml4.0-cil is already installed and configured
InstallationDate: Installed on 2016-03-16 (0 days ago)
InstallationMedia: Lubuntu 15.10 "Wily Werewolf" - Release amd64 (20151021)
PackageArchitecture: all
RelatedPackageVersions:
 dpkg 1.18.2ubuntu5.1
 apt 1.0.10.2ubuntu1
SourcePackage: dpkg
Title: package libmono-system-xml4.0-cil 3.2.8+dfsg-4ubuntu4 failed to install/upgrade: package libmono-system-xml4.0-cil is already installed and configured
UpgradeStatus: No upgrade log present (probably fresh install)