build error

[zer0-1s]

dude@ubuntu:~/Desktop/DUDE/DUDE$ celery -A feast_app worker -l info
Usage: celery [OPTIONS] COMMAND [ARGS]...
Try 'celery --help' for help.

Error: Invalid value for '-A' / '--app': 
Unable to load celery application.
The module feast_app was not found.

build in ubuntu20.04

[Herrtane]

Same error occured