package mythtv-database 2:0.28.0+fixes.20161023.7f8f168-0ubuntu0mythbuntu3 [origin: unknown] failed to install/upgrade: subprocess installed post-installation script returned error exit status 1

[Murray Pickard]

system updates failed to install

ProblemType: Package
DistroRelease: Ubuntu 16.04
Package: mythtv-database 2:0.28.0+fixes.20161023.7f8f168-0ubuntu0mythbuntu3 [origin: unknown]
ProcVersionSignature: Ubuntu 4.4.0-45.66-generic 4.4.21
Uname: Linux 4.4.0-45-generic x86_64
ApportVersion: 2.20.1-0ubuntu2.1
Architecture: amd64
CrashDB: mythbuntu
Date: Sat Nov 19 12:21:57 2016
DuplicateSignature:
 package:mythtv-database:2:0.28.0+fixes.20161023.7f8f168-0ubuntu0mythbuntu3 [origin: unknown]
 Setting up mythtv-database (2:0.28.0+fixes.20161023.7f8f168-0ubuntu0mythbuntu3) ...
 ln: failed to create symbolic link '/etc/mysql/mysql.conf.d/mythtv.cnf': File exists
 dpkg: error processing package mythtv-database (--configure):
  subprocess installed post-installation script returned error exit status 1
ErrorMessage: subprocess installed post-installation script returned error exit status 1
InstallationDate: Installed on 2016-09-11 (68 days ago)
InstallationMedia: Ubuntu 16.04.1 LTS "Xenial Xerus" - Release amd64 (20160719)
Installed_mythtv_dbg: 2:0.28.0+fixes.20161023.7f8f168-0ubuntu0mythbuntu3
PackageArchitecture: all
RelatedPackageVersions:
 dpkg 1.18.4ubuntu1.1
 apt 1.2.12~ubuntu16.04.1
SourcePackage: mythtv
Title: package mythtv-database 2:0.28.0+fixes.20161023.7f8f168-0ubuntu0mythbuntu3 [origin: unknown] failed to install/upgrade: subprocess installed post-installation script returned error exit status 1
UpgradeStatus: No upgrade log present (probably fresh install)
modified.conffile..etc.mysql.conf.d.mythtv.cnf: [deleted]