package texlive-base 2019.20200218-1 failed to install/upgrade: intentando sobreescribir `/usr/share/doc/texlive-doc/generic/iftex/iftex.pdf', que está también en el paquete texlive-plain-generic 2017.20180305-2

[rdipasquale]

upgrading to 20.04

ProblemType: Package
DistroRelease: Ubuntu 20.04
Package: texlive-base 2019.20200218-1
ProcVersionSignature: Ubuntu 5.4.0-18.22-generic 5.4.24
Uname: Linux 5.4.0-18-generic x86_64
ApportVersion: 2.20.11-0ubuntu21
Architecture: amd64
Date: Sun Mar 22 00:46:37 2020
ErrorMessage: intentando sobreescribir `/usr/share/doc/texlive-doc/generic/iftex/iftex.pdf', que está también en el paquete texlive-plain-generic 2017.20180305-2
InstallationDate: Installed on 2015-06-03 (1753 days ago)
InstallationMedia: Ubuntu 15.04 "Vivid Vervet" - Release amd64 (20150422)
PackageArchitecture: all
Python3Details: /usr/bin/python3.8, Python 3.8.2, python3-minimal, 3.8.2-0ubuntu1
PythonDetails: N/A
RelatedPackageVersions:
 dpkg 1.19.7ubuntu2
 apt 1.9.10
SourcePackage: texlive-base
Title: package texlive-base 2019.20200218-1 failed to install/upgrade: intentando sobreescribir `/usr/share/doc/texlive-doc/generic/iftex/iftex.pdf', que está también en el paquete texlive-plain-generic 2017.20180305-2
UpgradeStatus: Upgraded to focal on 2020-03-22 (0 days ago)