我目前正在使用flask，nginx和gunicorn托管API服务。
如果我不绑定古尼康（gunicorn wsgi:app），则可以毫无问题地向服务器发出请求。
如果我绑定古尼康（例如gunicorn --bind 0.0.0.0:5000 wsgi:app），则在我需要执行来自其他库的代码的flask应用程序的请求中遇到错误（机器学习推断）：
gunicorn[17110]: [2019-06-12 05:23:58 +0000] [17110] [INFO] Starting gunicorn 19.9.0
[2019-06-12 05:23:58 +0000] [17110] [INFO] Listening at: http://0.0.0.0:5000 (17110)
[2019-06-12 05:23:58 +0000] [17110] [INFO] Using worker: sync
[2019-06-12 05:23:58 +0000] [17131] [INFO] Booting worker with pid: 17131
[2019-06-12 05:24:11,269] ERROR in app: Exception on /predict [GET]
Traceback (most recent call last):
File "/usr/local/lib/python2.7/dist-packages/flask/app.py", line 2311, in wsgi_app
response = self.full_dispatch_request()
File "/usr/local/lib/python2.7/dist-packages/flask/app.py", line 1834, in full_dispatch_request
rv = self.handle_user_exception(e)
File "/usr/local/lib/python2.7/dist-packages/flask/app.py", line 1737, in handle_user_exception
reraise(exc_type, exc_value, tb)
File "/usr/local/lib/python2.7/dist-packages/flask/app.py", line 1832, in full_dispatch_request
rv = self.dispatch_request()
File "/usr/local/lib/python2.7/dist-packages/flask/app.py", line 1818, in dispatch_request
return self.view_functions[rule.endpoint](**req.view_args)
File "/root/server/app.py", line 517, in predict
tokenization.validate_case_matches_checkpoint(FLAGS.do_lower_case,FLAGS.init_checkpoint)
File "/usr/local/lib/python2.7/dist-packages/tensorflow/python/platform/flags.py", line 84, in __getattr__
wrapped(_sys.argv)
File "/usr/local/lib/python2.7/dist-packages/absl/flags/_flagvalues.py", line 633, in __call__
name, value, suggestions=suggestions)
UnrecognizedFlagError: Unknown command line flag 'bind'
发生了什么事？我该如何解决？