按照“入门”文档，我已经在heroku上成功部署了我的应用。
部署结束后，我输入：heroku ps:scale web=1。
但是作为回报，我得到了：Scaling dynos... ! ▸ Couldn't find that process type (web).
我打印了日志，得到了：
2020-05-07T16:55:45.691324+00:00 heroku[router]: at=error code=H14 desc="No web processes running" method=GET path="/favicon.ico" host=thawing-retreat-70669.herokuapp.com request_id=08bf5ac4-dc36-404d-98a3-dd3434084a44 fwd="90.2.155.70" dyno= connect= service= status=503 bytes= protocol=https
还有heroku ps
Free dyno hours quota remaining this month: 548h 53m (99%)
Free dyno usage for this app: 0h 0m (0%)
For more information on dyno sleeping and how to upgrade, see:
https://devcenter.heroku.com/articles/dyno-sleeping
No dynos on ⬢ thawing-retreat-70669
我读到它可能是我的Procfile；我有一个写着：
web: gunicorn pur_beurre.wsgi --log-file-
我检查了背包，我得到了：
heroku/python