UserWarning: Loading domain from 'domain.yml' failed. Using empty domain. Error: 'You need to specify a value for the key 'entity' in the slot mapping of type 'from_entity' for slot 'email' in the form 'newsletter_form'

Rasa Open Source
1

stories.yml

version: "2.0"

stories:

- story: happy path
  steps:
  - intent: greet
  - action: utter_greet
  - intent: mood_great
  - action: utter_happy

- story: sad path 1
  steps:
  - intent: greet
  - action: utter_greet
  - intent: mood_unhappy
  - action: utter_cheer_up
  - action: utter_did_that_help
  - intent: affirm
  - action: utter_happy

- story: sad path 2
  steps:
  - intent: greet
  - action: utter_greet
  - intent: mood_unhappy
  - action: utter_cheer_up
  - action: utter_did_that_help
  - intent: deny
  - action: utter_goodbye

- story: greet and subscribe
  steps:
    - intent: greet
    - action: utter_greet
    - intent: subscribe
    - action: newsletter_form
    - active_loop: newsletter_form
    - active_loop: null
    - action: utter_subscribed

domain.yml

version: "2.0"

intents:
  - greet
  - goodbye
  - affirm
  - deny
  - mood_great
  - mood_unhappy
  - bot_challenge
  - subscribe
  - inform_email
  - inform_frequency

entities:
  - email

forms:
  newsletter_form:
    required_slots:
      email:
        - type: from_entity
        - entity: email
      frequency: 
        - type: from_text
        - intent: inform_frequency

slots:
  email:
    type: text
    influence_conversation: false
  frequency:
    type: text
    influence_conversation: false


responses:
  utter_greet:
  - text: "Hey! How are you?"
  - text: Hi, how's it going?

  utter_ask_email:
  - text: What is your email address?
  utter_ask_frequency:
  - text: How often do you want to receive emails from me?
  utter_subscribed:
  - text: You're all set! Check your inbox at {email} to confirm your subscription.
          You will receive emails {frequency}.

  utter_cheer_up:
  - text: "Here is something to cheer you up:"
    image: "https://i.imgur.com/nGF1K8f.jpg"

  utter_did_that_help:
  - text: "Did that help you?"

  utter_happy:
  - text: "Great, carry on!"

  utter_goodbye:
  - text: "Bye"

  utter_iamabot:
  - text: "I am a bot, powered by Rasa."

session_config:
  session_expiration_time: 60
  carry_over_slots_to_new_session: true

Logs:

C:\Users\jayp\Projects\test>rasa data validate
The configuration for pipeline was chosen automatically. It was written into the config file at 'config.yml'.
C:\Users\jayp\Anaconda3\envs\rasa.8.4\lib\site-packages\rasa\shared\utils\io.py:97: UserWarning: Loading domain from 'domain.yml' failed. Using empty domain. Error: 'You need to specify a value for the key 'entity' in the slot mapping of type 'from_entity' for slot 'email' in the form 'newsletter_form'. Please see https://rasa.com/docs/rasa/forms for more information.'
C:\Users\jayp\Anaconda3\envs\rasa.8.4\lib\site-packages\rasa\shared\utils\io.py:97: UserWarning: Issue found in 'data\rules.yml':
Found intent 'goodbye' in stories which is not part of the domain.
  More info at https://rasa.com/docs/rasa/stories
C:\Users\jayp\Anaconda3\envs\rasa.8.4\lib\site-packages\rasa\shared\utils\io.py:97: UserWarning: Issue found in 'data\rules.yml':
Found intent 'bot_challenge' in stories which is not part of the domain.
  More info at https://rasa.com/docs/rasa/stories
C:\Users\jayp\Anaconda3\envs\rasa.8.4\lib\site-packages\rasa\shared\utils\io.py:97: UserWarning: Issue found in 'data\stories.yml':
Found intent 'greet' in stories which is not part of the domain.
  More info at https://rasa.com/docs/rasa/stories
C:\Users\jayp\Anaconda3\envs\rasa.8.4\lib\site-packages\rasa\shared\utils\io.py:97: UserWarning: Issue found in 'data\stories.yml':
Found intent 'mood_great' in stories which is not part of the domain.
  More info at https://rasa.com/docs/rasa/stories
C:\Users\jayp\Anaconda3\envs\rasa.8.4\lib\site-packages\rasa\shared\utils\io.py:97: UserWarning: Issue found in 'data\stories.yml':
Found intent 'mood_unhappy' in stories which is not part of the domain.
  More info at https://rasa.com/docs/rasa/stories
C:\Users\jayp\Anaconda3\envs\rasa.8.4\lib\site-packages\rasa\shared\utils\io.py:97: UserWarning: Issue found in 'data\stories.yml':
Found intent 'affirm' in stories which is not part of the domain.
  More info at https://rasa.com/docs/rasa/stories
C:\Users\jayp\Anaconda3\envs\rasa.8.4\lib\site-packages\rasa\shared\utils\io.py:97: UserWarning: Issue found in 'data\stories.yml':
Found intent 'deny' in stories which is not part of the domain.
  More info at https://rasa.com/docs/rasa/stories
C:\Users\jayp\Anaconda3\envs\rasa.8.4\lib\site-packages\rasa\shared\utils\io.py:97: UserWarning: Issue found in 'data\stories.yml':
Found intent 'subscribe' in stories which is not part of the domain.
  More info at https://rasa.com/docs/rasa/stories
Project validation completed with errors.
2

For email slot, the slot type specified under forms is from_entity and the slot type specified under slots is text. You can change this to from_entity and try training again.

forms:
  newsletter_form:
    required_slots:
      email:
        - type: from_entity
        - entity: email

slots:
  email:
    type: text
    influence_conversation: false
3

i set the email slot type to “from_entity” and got below error:

slots:
  email:
    type: from_entity
  frequency:
    type: text

InvalidSlotTypeException: Failed to find slot type, 'from_entity' is neither a known type nor user-defined. If you are creating your own slot type, make sure its module path is correct. You can find all build in types at https://rasa.com/docs/rasa/domain#slots
4

Sorry, there was a little confusion between 2.x and 3.x!

5

No worries. Looks like there some issue with the way i’m setting up entity and intent and type from_entity and from_intent. if i comment out those part and keep type as from_text then it works.

forms:
  newsletter_form:
    required_slots:
      email:
        - type: from_text
        # - entity: email
      frequency: 
        - type: from_text
        # - intent: inform_frequency

But keeping “from_text” is taking whole text from the user instead of just extracting email.

6

The from_text slot mapping will always set the slot with the whole user utterance. You can try using regex or duckling for email extraction.

7

As per my understanding after reading documentation both regex or duckling used to extract entity but in my case i don’t have issue extracting entity. i have issue with form where i’m not able to fill the form slot using “from_entity” and giving me a below error when trying to train the model.

UserWarning: Loading domain from 'domain.yml' failed. Using empty domain. Error: 'You need to specify a value for the key 'entity' in the slot mapping of type 'from_entity' for slot 'email' in the form 'newsletter_form'. Please see https://rasa.com/docs/rasa/forms for more information.'