Docker image runs fine on local machine, but fails with "/usr/local/bin/scrapyd -n: Unknown command: scrapyd" when deployed on heroku

Question

This is my docker file:

FROM python:3.10

WORKDIR /usr/src/app

COPY requirements.txt ./

RUN pip install --no-cache-dir -r requirements.txt

COPY CollegeXUniversityDataScraper ./CollegeXUniversityDataScraper/

COPY scrapyd.conf ./

ENTRYPOINT [ "scrapyd"]

It is running perfectly fine over the port configured in the scrapyd.conf file. But when I build the same and deploy on heroku, it does not seem to work.

This is what I get back in return

State changed from crashed to starting
2023-03-22T09:12:44.063518+00:00 heroku[web.1]: Starting process with command `scrapyd`

.....

/usr/local/bin/scrapyd -n: Unknown command: scrapyd
Process exited with status 0
State changed from starting to crashed