Traceback (most recent call last):


 "/home/nico/.local/lib/python3.8/site-packages/tqdm/std.py", line 1090, in __del__


 "/home/nico/.local/lib/python3.8/site-packages/tqdm/std.py", line 1303, in close


 "/home/nico/.local/lib/python3.8/site-packages/tqdm/std.py", line 1481, in display


 "/home/nico/.local/lib/python3.8/site-packages/tqdm/std.py", line 1093, in __repr__


 "/home/nico/.local/lib/python3.8/site-packages/tqdm/std.py", line 1443, in format_dict
TypeError: cannot unpack non-iterable NoneType object

Traceback (most recent call last):


 "d:\programdata\envs\python_3_6\lib\runpy.py", line 193, in _run_module_as_main

"__main__", mod_spec)


 "d:\programdata\envs\python_3_6\lib\runpy.py", line 85, in _run_code

exec(code, run_globals)


 "D:\ProgramData\envs\python_3_6\Scripts\bert-serving-start.exe\__main__.py", line 7, in <module>


 "d:\programdata\envs\python_3_6\lib\site-packages\bert_serving\server\cli\__init__.py", line 4, in main

with BertServer(get_run_args()) as server:


 "d:\programdata\envs\python_3_6\lib\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