package elmer 6.1.0.svn.5396.dfsg2-4ubuntu4 failed to install/upgrade: tentative de remplacement de « /usr/bin/matc », qui appartient aussi au paquet elmerfem-csc 8.2-201703221431~9ff8534~ubuntu16.04.1

[Calvin Le Verger]

Apparently, I have a problem with elmer's installation. Any idea to resolve it ?
Thank you.

ProblemType: Package
DistroRelease: Ubuntu 16.04
Package: elmer 6.1.0.svn.5396.dfsg2-4ubuntu4
ProcVersionSignature: Ubuntu 4.8.0-41.44~16.04.1-generic 4.8.17
Uname: Linux 4.8.0-41-generic x86_64
ApportVersion: 2.20.1-0ubuntu2.5
Architecture: amd64
Date: Fri Mar 24 14:57:30 2017
ErrorMessage: tentative de remplacement de « /usr/bin/matc », qui appartient aussi au paquet elmerfem-csc 8.2-201703221431~9ff8534~ubuntu16.04.1
InstallationDate: Installed on 2017-03-22 (3 days ago)
InstallationMedia: Ubuntu 16.04.2 LTS "Xenial Xerus" - Release amd64 (20170215.2)
RelatedPackageVersions:
 dpkg 1.18.4ubuntu1.1
 apt 1.2.19
SourcePackage: elmerfem
Title: package elmer 6.1.0.svn.5396.dfsg2-4ubuntu4 failed to install/upgrade: tentative de remplacement de « /usr/bin/matc », qui appartient aussi au paquet elmerfem-csc 8.2-201703221431~9ff8534~ubuntu16.04.1
UpgradeStatus: No upgrade log present (probably fresh install)