title: PostgresSQL Installation fails: "database cluster initialisation failed" MAC os
body: <p>I am installing PostgreSQL (V 9.6.16) on macOS Catalina 10.15.1. Before it finishes installing I am getting the following error:</p>
  
  <blockquote>
    <p>Problem running post-install step. Installation may not complete correctly The database cluster initialisation failed.</p>
  </blockquote>
  
  <p>How can I solve this?</p>