Problem with creating backend addon

I have been trying for a long time to create a backend add-on. I used plonecli to scaffold an add-on, but it is not appearing in the UI, and I am unable to create an add-on. Can someone help me with this?

Did you check:

  • the add-on is installed in your Python (either in mx.ini or buildout or in requirements.txt, depends on your installation method)?
  • The ZCML is loaded (either in instance.yaml or in buildot, depends on your installation method)?