过去2个小时我一直在努力使我的应用程序在heroku上正常运行。它成功部署，但随后我执行heroku logs--tail并收到以下错误：
2020-05-07T03:28:53.622115+00:00 app[web.1]: Usage: gunicorn [OPTIONS]
2020-05-07T03:28:53.622116+00:00 app[web.1]: Try 'gunicorn --help' for help.
2020-05-07T03:28:53.622117+00:00 app[web.1]:
2020-05-07T03:28:53.622123+00:00 app[web.1]: Error: Got unexpected extra argument (app:app)
2020-05-07T03:28:53.622575+00:00 app[web.1]: [2020-05-07 03:28:53 +0000] [4173] [INFO] Worker exiting (pid: 4173)
2020-05-07T03:28:53.733250+00:00 app[web.1]: [2020-05-07 03:28:53 +0000] [4175] [INFO] Booting worker with pid: 4175
2020-05-07T03:28:54.488681+00:00 app[web.1]: Usage: gunicorn [OPTIONS]
2020-05-07T03:28:54.488689+00:00 app[web.1]: Try 'gunicorn --help' for help.
2020-05-07T03:28:54.488689+00:00 app[web.1]:
2020-05-07T03:28:54.488697+00:00 app[web.1]: Error: Got unexpected extra argument (app:app)
2020-05-07T03:28:54.488999+00:00 app[web.1]: [2020-05-07 03:28:54 +0000] [4174] [INFO] Worker exiting (pid: 4174)
2020-05-07T03:28:54.595663+00:00 app[web.1]: [2020-05-07 03:28:54 +0000] [4176] [INFO] Booting worker with pid: 4176
2020-05-07T03:28:54.611700+00:00 app[web.1]: Usage: gunicorn [OPTIONS]
2020-05-07T03:28:54.611702+00:00 app[web.1]: Try 'gunicorn --help' for help.
2020-05-07T03:28:54.611702+00:00 app[web.1]:
2020-05-07T03:28:54.611710+00:00 app[web.1]: Error: Got unexpected extra argument (app:app)
2020-05-07T03:28:54.612251+00:00 app[web.1]: [2020-05-07 03:28:54 +0000] [4175] [INFO] Worker exiting (pid: 4175)
2020-05-07T03:28:54.735061+00:00 app[web.1]: [2020-05-07 03:28:54 +0000] [4177] [INFO] Booting worker with pid: 4177
2020-05-07T03:28:54.888025+00:00 heroku[web.1]: Idling
2020-05-07T03:28:54.891494+00:00 heroku[web.1]: State changed from up to down
2020-05-07T03:28:55.425706+00:00 app[web.1]: Usage: gunicorn [OPTIONS]
2020-05-07T03:28:55.425718+00:00 app[web.1]: Try 'gunicorn --help' for help.
2020-05-07T03:28:55.425719+00:00 app[web.1]:
2020-05-07T03:28:55.425725+00:00 app[web.1]: Error: Got unexpected extra argument (app:app)
2020-05-07T03:28:55.426074+00:00 app[web.1]: [2020-05-07 03:28:55 +0000] [4176] [INFO] Worker exiting (pid: 4176)
2020-05-07T03:28:55.542305+00:00 app[web.1]: [2020-05-07 03:28:55 +0000] [4178] [INFO] Booting worker with pid: 4178
2020-05-07T03:28:55.544895+00:00 app[web.1]: Usage: gunicorn [OPTIONS]
2020-05-07T03:28:55.544896+00:00 app[web.1]: Try 'gunicorn --help' for help.
2020-05-07T03:28:55.544897+00:00 app[web.1]:
2020-05-07T03:28:55.545441+00:00 app[web.1]: Error: Got unexpected extra argument (app:app)
一个无限循环继续下去。停止此操作的唯一方法是使用control + c强制退出。此错误使我无法使用Web应用程序。预先感谢
这是我的Procfile：web: gunicorn app:app