# Cannot find required key 'mappings'. Path: '/slots/ticker'

**URL:** <https://forum.rasa.com/t/cannot-find-required-key-mappings-path-slots-ticker/51283>\
**Category:** Rasa Open Source\
**Created:** [February 11, 2022, 12:24pm UTC](https://forum.rasa.com/t/cannot-find-required-key-mappings-path-slots-ticker/51283 "2022-02-11T12:24:25Z")\
**Posts on this page:** 1\
**Showing post:** 1

<div class="post-metadata">

**Author:** ![mahendra210](https://dub1.discourse-cdn.com/flex013/user_avatar/forum.rasa.com/mahendra210/32/19413_2.png) [@mahendra210](https://forum.rasa.com/u/mahendra210)\
**Post date:** [February 11, 2022, 12:24pm UTC](https://forum.rasa.com/t/cannot-find-required-key-mappings-path-slots-ticker/51283/1 "2022-02-11T12:24:26Z")

</div>

I’m trying to create bot using rasanlu butb getting following error:`Cannot find required key 'mappings'. Path: '/slots/ticker'`

**OS:** ubuntu

**Rasa Version:** 3.0.6

**Python Version:** 3.8.12

domain.yml

```auto
version: "3.0"

intents:
  - greet
  - goodbye
  - affirm
  - deny
  - mood_great
  - mood_unhappy
  - bot_challenge
  - price:
      use_entities:
        - ticker

actions:
  - action_current_price

entities:
  - ticker

slots:
  ticker:
    type: undefined

responses:
  utter_greet:
  - text: "Hey! How are you?"

  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?"

  action_current_price:
  - text: Ok, getting price of [ticker] ...

  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

```

can anyone help?

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