title: port 5432 is already in use postgres mac
body: <p>When installing Postgresql 11 I got an error. I did the lesson right. Searched Google but didn’t find. I'm not trying to run different versions of postgresql, I'm just trying to install it.</p>
  
  <p><img src="https://i.stack.imgur.com/ChwQj.png" alt="Error message: Port 5432 is already in use"></p>