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heroku - Couldn't find that process type (web)按照developer6811的说明进行了操作，但仍然出现错误：

Scaling dynos... !
▸    Couldn't find that process type (web).

在做了

$ heroku ps:scale web=1

一些说明，显示我的条件：

$ pip install gunicorn
Requirement already satisfied: gunicorn in c:\users\adolp\anaconda3\lib\site-packages (20.1.0)
Requirement already satisfied: setuptools>=3.0 in c:\users\adolp\anaconda3\lib\site-packages (from gunicorn) (52.0.0.post20210125)

$git commit --allow-empty -m "Adjust buildpacks on Heroku"
[main 92d6f48] Adjust buildpacks on Heroku

$git push heroku master
Everything up-to-date

$git push heroku main
Everything up-to-date

$heroku buildpacks:add heroku/python
 »   Error: The buildpack heroku/python is already set on your app.

app.py:

from flask import Flask
app = Flask(__name__)

@app.route("/")#decorator
def home():
    return "Hello Flask 2"
@app.route("/test")#decorator
def test():
    return "This is Test"
if __name__=="__main__":
    app.run()

过程文件：

web: gunicorn app:app

Requirements.txt:

Flask
gunicorn

runtime.txt:

python-3.9.11

project folder image