Reports an unregistered task in Celery Beat Schedule

Example:

  #settings.py

  CELERY_BEAT_SCHEDULE = {
      'task_name': {
          'task': 'example_app.tasks.task_name', # path to a task represented by a class or function
          'schedule': 3.0,
      },
  }


  #example_app/tasks.py

  @app.task()
  def taskName():
      pass

  class TaskName(Task):
      pass

If a task class doesn't Task in inheritance or task function doesn't have the necessary decorators, it wouldn't be considered as registered