title: Apche NiFi Not Working
body: <p>I just started learning about Apache NIFI. I installed it by following this video on youtube - <a href="https://www.youtube.com/watch?v=DDd6KayUHt8" rel="nofollow noreferrer">https://www.youtube.com/watch?v=DDd6KayUHt8</a></p>
  
  <p>I blindly followed what he said. But when I type <a href="http://localhost:9090/nifi" rel="nofollow noreferrer">http://localhost:9090/nifi</a> (as said on the video) on the browser. Nothing works.</p>
  
  <p>I get this error in command prompt - </p>
  
  <p><a href="https://i.stack.imgur.com/yRNVl.png" rel="nofollow noreferrer"><img src="https://i.stack.imgur.com/yRNVl.png" alt="Error"></a>
  I tried googling for solution but couldn't find any. Someone please help.</p>