package gir1.2-matedesktop-2.0 (not installed) failed to install/upgrade: trying to overwrite '/usr/lib/i386-linux-gnu/girepository-1.0/MateDesktop-2.0.typelib', which is also in package gir1.2-mate-desktop 1.20.0-0ubuntu1

[Toby]

No other information.

ProblemType: Package
DistroRelease: Ubuntu 18.04
Package: gir1.2-matedesktop-2.0 (not installed)
ProcVersionSignature: Ubuntu 4.15.0-12.13-generic 4.15.7
Uname: Linux 4.15.0-12-generic i686
NonfreeKernelModules: nvidia
ApportVersion: 2.20.9-0ubuntu1
Architecture: i386
Date: Tue Mar 27 18:55:16 2018
DuplicateSignature:
 package:gir1.2-matedesktop-2.0:(not installed)
 Unpacking gir1.2-matedesktop-2.0:i386 (1.20.1-0ubuntu1) ...
 dpkg: error processing archive /tmp/apt-dpkg-install-D9LNH4/17-gir1.2-matedesktop-2.0_1.20.1-0ubuntu1_i386.deb (--unpack):
  trying to overwrite '/usr/lib/i386-linux-gnu/girepository-1.0/MateDesktop-2.0.typelib', which is also in package gir1.2-mate-desktop 1.20.0-0ubuntu1
ErrorMessage: trying to overwrite '/usr/lib/i386-linux-gnu/girepository-1.0/MateDesktop-2.0.typelib', which is also in package gir1.2-mate-desktop 1.20.0-0ubuntu1
Python3Details: /usr/bin/python3.6, Python 3.6.5rc1, python3-minimal, 3.6.4-1
PythonDetails: /usr/bin/python2.7, Python 2.7.14+, python-minimal, 2.7.14-4
RelatedPackageVersions:
 dpkg 1.19.0.5ubuntu1
 apt 1.6~beta1
SourcePackage: mate-desktop
Title: package gir1.2-matedesktop-2.0 (not installed) failed to install/upgrade: trying to overwrite '/usr/lib/i386-linux-gnu/girepository-1.0/MateDesktop-2.0.typelib', which is also in package gir1.2-mate-desktop 1.20.0-0ubuntu1
UpgradeStatus: No upgrade log present (probably fresh install)