Heroku Flask Gunicorn Command not found

问题

Trying to deploy my flask app to Heroku but keep running into this error:

2020-06-18T04:13:43.162139+00:00 heroku[web.1]: State changed from crashed to starting 2020-06-18T04:13:47.317872+00:00 heroku[web.1]: Starting process with command gunicorn learning_flashcards:app 2020-06-18T04:13:49.836638+00:00 heroku[web.1]: Process exited with status 127 2020-06-18T04:13:49.884998+00:00 heroku[web.1]: State changed from starting to crashed 2020-06-18T04:13:49.767236+00:00 app[web.1]: bash: gunicorn: command not found

I've checked a few other solutions on here (like this one: Heroku can't find gunicorn command) and have followed their advice, including:

Putting gunicorn in the requirements.txt file and re-running it
pip installing gunicorn
Double-checking git and git push heroku master are up to date

Also, running Heroku local shows this:

12:23:12 AM web.1 | [2020-06-18 00:23:12 -0400] [16504] [INFO] Starting gunicorn 20.0.4 12:23:12 AM web.1 | [2020-06-18 00:23:12 -0400] [16504] [INFO] Listening at: http://0.0.0.0:5000 (16504) 12:23:12 AM web.1 | [2020-06-18 00:23:12 -0400] [16504] [INFO] Using worker: sync 12:23:12 AM web.1 | [2020-06-18 00:23:12 -0400] [16507] [INFO] Booting worker with pid: 16507

So gunicorn seems to be running ok.

I'm wondering if I'm not writing the command in the procfile correctly? Have also tried fiddling with this but no luck.

Here is my root directory:

.
├── Procfile
├── __pycache__
├── config.py
├── learning_flashcards
│   ├── __init__.py
│   ├── __pycache__
│   │   ├── __init__.cpython-36.pyc
│   │   ├── app.cpython-36.pyc
│   │   └── views.cpython-36.pyc
│   ├── app.py
│   ├── static
│   │   └── style.css
│   ├── templates
│   └── views.py
├── manage.py
├── requirements
│   ├── common.txt
│   ├── dev.txt
│   ├── requirements.txt
│   └── runtime.txt
├── setup.py
├── tests
└── venv

And learning_flashcards/app.py:

from flask import Flask

app = Flask(__name__)


@app.route('/')
def learning_flashcards():
return "Hello World!"

if __name__ == '__main__':
    app.run()

来源：https://stackoverflow.com/questions/62442436/heroku-flask-gunicorn-command-not-found

标签

python

heroku

gunicorn