Error Messages:

bert_as_service + tensorflow 2.1.0
Tensorflow 2.1.0 is not tested!

So reinstalled the virtual environment

I:?[35mVENTILATOR?[0m:freeze, optimize and export graph, could take a while…
d:\anaconda\envs\tensorflow\lib\site-packages\bert_serving\server\helper.py:176: UserWarning: Tensorflow 2.1.0 is not tested! It may or may not work. Feel free to submit an i
ssue at https://github.com/hanxiao/bert-as-service/issues/
‘Feel free to submit an issue at https://github.com/hanxiao/bert-as-service/issues/’ % tf.version)
E:?[36mGRAPHOPT?[0m:fail to optimize the graph!
Traceback (most recent call last):
File “d:\anaconda\envs\tensorflow\lib\runpy.py”, line 193, in run_module_as_main
“main”, mod_spec)
File “d:\anaconda\envs\tensorflow\lib\runpy.py”, line 85, in run_code
exec(code, run_globals)
File "D:\Anaconda\envs\tensorflow\Scripts\bert-serving-start.exe_main.py", line 9, in
File "d:\anaconda\envs\tensorflow\lib\site-packages\bert_serving\server\cli_init.py", line 4, in main
with BertServer(get_run_args()) as server:
File “d:\anaconda\envs\tensorflow\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

It can be used by installing tensorflow1.10+python3.6.10