title: Magneto 2 custom console command undefined nanespace
body: <p>I have to implement a custom cli command. I started from scratch by a step by step tutorial. I have copy-paste everything, but the message is:
  "There are no commands defined in the "bss:checkcli" namespace.". </p>
  
  <p>Of course I have cleared and rebuilt the cache. </p>
  
  <p>The mentioned tutorial: <a href="https://bsscommerce.com/confluence/how-to-create-console-command-magento2/" rel="nofollow noreferrer">https://bsscommerce.com/confluence/how-to-create-console-command-magento2/</a></p>
  
  <p>I am new to console development so I have no idea what do I step next. </p>
  
  <p>Any idea? </p>