ValueError: authenticator must be provided

[Sarath Chandra]

(mytestenv) C:\Users\Sarat\ana\watson-voice-bot>python app.py
INFO:engineio.server:Server initialized for threading.
Traceback (most recent call last):
File "app.py", line 128, in
assistant = AssistantV1(version="2019-11-06", authenticator=authenticator)
File "C:\Users\Sarat\ana\watson-voice-bot\mytestenv\lib\site-packages\ibm_watson\assistant_v1.py", line 81, in init
disable_ssl_verification=disable_ssl_verification)
File "C:\Users\Sarat\ana\watson-voice-bot\mytestenv\lib\site-packages\ibm_cloud_sdk_core\base_service.py", line 63, in init
raise ValueError('authenticator must be provided')
ValueError: authenticator must be provided

[Mark Sturdevant]

authenticator is set from the environment right before that call L126.
So if it is not set, that probably means you did not set your .env file to have
ASSISTANT_APIKEY=your key
ASSISTANT_URL=your url