I am testing my raspberryPi environment with using flask-assistant, ngrok and Dialogflow. When I run Simulator after simply following Quick Start tutorial in https://flask-assistant.readthedocs.io/en/latest/quick_start.html, I got an error
"Failed to parse Dialogflow response into AppResponse because of empty speech response"
Do you have any idea what causes the error? Here is the error log.
[2018-08-19 17:56:50,006] ERROR in app: Exception on / [POST] Traceback (most recent call last): File "/home/pi/.local/lib/python3.5/site-packages/flask/app.py", line 1982, in wsgi_app response = self.full_dispatch_request() File "/home/pi/.local/lib/python3.5/site-packages/flask/app.py", line 1614, in full_dispatch_request rv = self.handle_user_exception(e) File "/home/pi/.local/lib/python3.5/site-packages/flask/app.py", line 1517, in handle_user_exception reraise(exc_type, exc_value, tb) File "/home/pi/.local/lib/python3.5/site-packages/flask/_compat.py", line 33, in reraise raise value File "/home/pi/.local/lib/python3.5/site-packages/flask/app.py", line 1612, in full_dispatch_request rv = self.dispatch_request() File "/home/pi/.local/lib/python3.5/site-packages/flask/app.py", line 1598, in dispatch_request return self.view_functionsrule.endpoint File "/usr/local/lib/python3.5/dist-packages/flask_assistant/core.py", line 285, in _flask_assitant_view_func self.intent = self.request['result']['metadata']['intentName'] KeyError: 'result' 127.0.0.1 - - [19/Aug/2018 17:56:50] "POST / HTTP/1.1" 500 -