Traceback (most recent call last):


 "C:\Users\UserName\AppData\Local\Programs\Python\Python38\lib\site-packages\requests\adapters.py", line 439, in send


 "C:\Users\UserName\AppData\Local\Programs\Python\Python38\lib\ssl.py", line 1309, in do_handshake

self._sslobj.do_handshake()
urllib3.exceptions.ProtocolError: ('Connection aborted.', OSError(0, 'Error'))

Traceback (most recent call last):


 "/root/bert_venv/bin/bert-serving-start", line 10, in <module>

sys.exit(main())


 "/root/bert_venv/lib/python3.6/site-packages/bert_serving/server/cli/__init__.py", line 4, in main

with BertServer(get_run_args()) as server:


 "/root/bert_venv/lib/python3.6/site-packages/bert_serving/server/__init__.py", line 71, in __init__

self.graph_path, self.bert_config = pool.apply(optimize_graph, (self.args,))
TypeError: 'NoneType' object is not iterable
