Unable to start celery tasks

[Haswell49]

How do I run the last command in README.md ? :
celery -A tasks worker --loglevel=INFO

This command results with an error:

Usage: celery [OPTIONS] COMMAND [ARGS]...
Try 'celery --help' for help.            

Error: Invalid value for '-A' / '--app': 
Unable to load celery application.       
Module 'tasks' has no attribute 'celery' 

I suppose the problem is with the init.py of tasks module.

[priyank-panchal-inferenz]

Are you using Windows? If so, the command you need is here.
celery -A tasks worker --loglevel=Info --pool=solo