title: Unmet dependencies while trying to install mysql in Ubuntu 20.04
body: <p>I tried to install / remove and reinstall / fix Mysql and Workbench in Ubuntu 20.04 but allways get this message:</p>
  
  <pre><code>Building dependency tree       
  Reading state information... Done
  mysql-server is already the newest version (8.0.20-2ubuntu20.04).
  You might want to run 'apt --fix-broken install' to correct these.
  The following packages have unmet dependencies:
   libmysqlclient21 : Depends: mysql-common (&gt;= 8.0.20-2ubuntu20.04) but 5.8+1.0.5ubuntu2 is to be installed
   mysql-client : Depends: mysql-community-client (= 8.0.20-2ubuntu20.04) but it is not installable
   mysql-community-test : Depends: mysql-community-server (= 8.0.20-2ubuntu20.04) but it is not installable
                          Depends: mysql-community-client (= 8.0.20-2ubuntu20.04) but it is not installable
                          Depends: libjson-perl but it is not going to be installed
                          Depends: mysql-community-server-core but it is not installable
   mysql-server : Depends: mysql-community-server (= 8.0.20-2ubuntu20.04) but it is not installable
  E: Unmet dependencies. Try 'apt --fix-broken install' with no packages (or specify a solution).
  </code></pre>
  
  <p>When I try sudo apt --fix-broken install this comes out:</p>
  
  <pre><code>The following packages have unmet dependencies:
   libmysqlclient21 : Depends: mysql-common (&gt;= 8.0.20-2ubuntu20.04) but 5.8+1.0.5ubuntu2 is installed
   mysql-client : Depends: mysql-community-client (= 8.0.20-2ubuntu20.04) but it is not installable
   mysql-community-test : Depends: mysql-community-server (= 8.0.20-2ubuntu20.04) but it is not installable
                          Depends: mysql-community-client (= 8.0.20-2ubuntu20.04) but it is not installable
                          Depends: libjson-perl but it is not installed
                          Depends: mysql-community-server-core but it is not installable
   mysql-server : Depends: mysql-community-server (= 8.0.20-2ubuntu20.04) but it is not installable
  E: Error, pkgProblemResolver::Resolve generated breaks, this may be caused by held packages.
  E: Unable to correct dependencies
  </code></pre>
  
  <p>I'm sorry, I'm sure there is a easy solution.. but I can't find it.</p>