package slack (not installed) failed to install/upgrade: trying to overwrite '/usr/share/doc/slack/copyright', which is also in package slack-desktop 2.5.2

[Dennis Schwartz-Knap]

Slack was running fine. This error occurred after reboot. Didn't touch any settings nor files... I promise...

ProblemType: Package
DistroRelease: Ubuntu 16.10
Package: slack (not installed)
ProcVersionSignature: Ubuntu 4.8.0-59.64-generic 4.8.17
Uname: Linux 4.8.0-59-generic x86_64
ApportVersion: 2.20.3-0ubuntu8.7
AptOrdering:
 slack:amd64: Install
 NULL: ConfigurePending
Architecture: amd64
Date: Mon Sep 25 13:36:30 2017
DpkgTerminalLog:
 Preparing to unpack .../slack_1%3a0.15.2-9_all.deb ...
 Unpacking slack (1:0.15.2-9) ...
 dpkg: error processing archive /var/cache/apt/archives/slack_1%3a0.15.2-9_all.deb (--unpack):
  trying to overwrite '/usr/share/doc/slack/copyright', which is also in package slack-desktop 2.5.2
ErrorMessage: trying to overwrite '/usr/share/doc/slack/copyright', which is also in package slack-desktop 2.5.2
InstallationDate: Installed on 2017-03-03 (213 days ago)
InstallationMedia: Ubuntu 16.10 "Yakkety Yak" - Release amd64 (20161012.2)
RelatedPackageVersions:
 dpkg 1.18.10ubuntu1.1
 apt 1.3.5
SourcePackage: slack
Title: package slack (not installed) failed to install/upgrade: trying to overwrite '/usr/share/doc/slack/copyright', which is also in package slack-desktop 2.5.2
UpgradeStatus: No upgrade log present (probably fresh install)

[dino99 (9d9)]

This is an unsupported release now. Please think to install the next LTS 'Bionic 18.04'

http://cdimage.ubuntu.com/lubuntu-next/daily-live/current/
https://www.omgubuntu.co.uk/2018/02/ubuntu-18-04-minimal-install-option