Exception in dispatcher.utter_message

Rasa Open Source
1

in a single custom actions that I have, when the line containing dispatcher.utter_message=f"{response}" is executed, the following error is displayed: “2023-02-17 15:44:34 ERROR root - Exception when trying to handle message .decoding to str: need a bytes-like object, NoneType found”. The part of the code that I believe is relevant is the following:

     .......
     answer = f"{first_name}, customer service 156 thanks you for contacting us!\nWe hope you have {greeting}"

     conn = redis.Redis('localhost', port=6379, db=1)
     conn.hdel(sender_id, "session", "timestamp")
     conn.close()

     dispatcher.utter_message(text=f"{response}")

     return [Restarted()]

Does anyone have any guidance?

2

solved I removed the lines that removed user session registration from Redis.

3

Then, we send them to the Airtable API using our previous method create_newsletter_record . Lastly, we use dispatcher to utter a custom message.