Bot freezes after running custom action, does not respond

Rasa Open Source
1

Hello I’m trying to get the bot to run this very simple custom action,

from typing import Any, Text, Dict, List

from rasa_sdk import Action, Tracker

from rasa_sdk.executor import CollectingDispatcher

class Math(Action):

def name(self) -> Text:
    return "action_math"

def run(self, dispatcher: CollectingDispatcher,
        tracker: Tracker,
        domain: Dict[Text, Any]) -> List[Dict[Text, Any]]:
    
    mathVar = (tracker.latest_message)['text']
    mathVar = ''.join(char for char in mathVar if char not in 'abcdefghijklmnopqrstuvwxyz')
    mathVarCalculate = eval(mathVar)
    dispatcher.utter_message(mathVarCalculate)

from what i can tell the action itself is executed as i should but when the bot is supposed to say the answer through dispatcher.utter_message it say nothing keeps working for a while and then gives me this error message,

Task exception was never retrieved

future: <Task finished coro=<RestInput.on_message_wrapper() done, defined at /Users/filipw/Documents/ConvoAi/anaconda3/lib/python3.7/site-packages/rasa/core/channels/channel.py:386> exception=AttributeError("‘int’ object has no attribute ‘split’")>

Does anyone know why?

2

Hi @ZwodoPaZ

please add:

return []

at the end of the run function and see if it works then!

Regards

3

Thanks! I tried but still the same problem sadly

4

If i run the bot in debug mode it seems to believe that it has said something.

Action ‘action_math’ ended with events ‘[‘BotUttered(text: 13, data: {“elements”: null, “quick_replies”: null, “buttons”: null, “attachment”: null, “image”: null, “custom”: null}, metadata: {})’]’

But it has not said a word.

5

I solved it!! The uttered message has to be a string

6

Hi @ZwodoPaZ

of course sigh. I should have actually read the error message :smiley:

Regards