Voice Kit Google - Failed (src/examples/voice/assistant_grpc_demo.py)

[Hernane007]

Please, I'm trying to perform the step to authorize the API credential, so I can use the demo assistant, but I can't find the url for authorization, the following error appears:

pi@raspberrypi:~/AIY-voice-kit-python $ src/examples/voice/assistant_grpc_demo.py
DEBUG:google.auth.transport.requests:Making request: POST https://oauth2.googleapis.com/token DEBUG:urllib3.connectionpool:Starting new HTTPS connection (1): oauth2.googleapis.com:443 DEBUG:urllib3.connectionpool:https://oauth2.googleapis.com:443 "POST /token HTTP/1.1" 400 None Traceback (most recent call last): File "src/examples/voice/assistant_grpc_demo.py", line 57, in main() File "src/examples/voice/assistant_grpc_demo.py", line 49, in main language_code=args.language) File "/home/pi/AIY-projects-python/src/aiy/assistant/grpc.py", line 258, in init super().init(language_code, volume_percentage) File "/home/pi/AIY-projects-python/src/aiy/assistant/grpc.py", line 94, in init credentials = auth_helpers.get_assistant_credentials() File "/home/pi/AIY-projects-python/src/aiy/assistant/auth_helpers.py", line 151, in get_assistant_credentials return _try_to_get_credentials(credentials_file) File "/home/pi/AIY-projects-python/src/aiy/assistant/auth_helpers.py", line 100, in _try_to_get_credentials return _load_credentials(_ASSISTANT_CREDENTIALS) File "/home/pi/AIY-projects-python/src/aiy/assistant/auth_helpers.py", line 63, in _load_credentials credentials.refresh(http_request) File "/usr/local/lib/python3.7/dist-packages/google/oauth2/credentials.py", line 206, in refresh self._scopes, File "/usr/local/lib/python3.7/dist-packages/google/oauth2/_client.py", line 248, in refresh_grant response_data = _token_endpoint_request(request, token_uri, body) File "/usr/local/lib/python3.7/dist-packages/google/oauth2/_client.py", line 124, in _token_endpoint_request _handle_error_response(response_body) File "/usr/local/lib/python3.7/dist-packages/google/oauth2/_client.py", line 60, in _handle_error_response raise exceptions.RefreshError(error_details, response_body) google.auth.exceptions.RefreshError: ('invalid_grant: Bad Request', '{\n "error": "invalid_grant",\n "error_description": "Bad Request"\n}')