Hey guys, i am new to Rasa 2.0. I am currently working on a student project which calculates the total price for food that user orders. However, I keep getting TypeError which means tracker.get_slot() returns None value. The code of my custom action is shown below: [custom action] I ran the shell with debug mode and it indicates that all the slots are filled: [slots] The error shown on my action server: [action server] The code for rules.yml: [rules] The template that i used for the custom action: [template] I am a bit confused about the purpose of requested_slot. Does tracker.get_slot() return the value from requested_slot? Because requested_slot is set to null in my rules.yml. that will be much appreciated if someone can help me out here!

Hi @Elliot . I think the error occurs because for some reason the slot drinks_num returns None for you. Are you filling in this slot with a form? I think what is happening is that in your rules with requested_slot: null you are resetting last requested slot to none. Is there a particular reason why you have this step in your rules? After your form completes (collects the necessary data), you should submit the form with your custom action. I don’t think I can see that happening in your rules. The rules could look something like the following: rule: submit_drinks condition: - active_loop: drinks_from steps: - actions: drinks_form - active_loop: null - action_order_confirmed - slot_was_set: - total: 100 - action: utter_order_confirmed

Hey Juste, thanks for your message! I have solved the problem. Once again, thank you very much :slight_smile:

No worries @Elliot . Glad you solved it and I am looking forward to seeing what AI assistants you build with Rasa! :slight_smile:

Tracker.get_slot() returns None value

Rasa Open Source

Elliot (Elliot Shaw) March 25, 2021, 12:37pm 5

Hey Juste. Thanks for your message. I am currently working on an AI assistant which take orders from users for the restaurant. And this is one of my capstone project

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Tracker.get_slot() returns None value

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