# YamlValidationException

**URL:** <https://forum.rasa.com/t/yamlvalidationexception/51777>\
**Category:** Rasa Open Source\
**Created:** [March 7, 2022, 7:26pm UTC](https://forum.rasa.com/t/yamlvalidationexception/51777 "2022-03-07T19:26:52Z")\
**Posts on this page:** 8\
**Page:** 1

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**Author:** ![DonJohn](https://avatars.discourse-cdn.com/v4/letter/d/a183cd/32.png) [@DonJohn](https://forum.rasa.com/u/DonJohn)\
**Post date:** [March 7, 2022, 7:26pm UTC](https://forum.rasa.com/t/yamlvalidationexception/51777/1 "2022-03-07T19:26:52Z")

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Hey guys! I’m a student and still new to rasa. Can you tell me what is wrong in this? [domain.yml](https://forum.rasa.com/uploads/short-url/c9HpALhLgbFgO3gqKPh9M8zITBz.yml) (14.9 KB) Thanks in advance!

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**Author:** ![anca](https://dub1.discourse-cdn.com/flex013/user_avatar/forum.rasa.com/anca/32/14540_2.png) [@anca](https://forum.rasa.com/u/anca)\
**Post date:** [March 8, 2022, 9:48am UTC](https://forum.rasa.com/t/yamlvalidationexception/51777/2 "2022-03-08T09:48:46Z")

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Hi @DonJohn The exception message will indicate what needs to be corrected, are you able to share that?

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**Author:** ![DonJohn](https://avatars.discourse-cdn.com/v4/letter/d/a183cd/32.png) [@DonJohn](https://forum.rasa.com/u/DonJohn)\
**Post date:** [March 8, 2022, 10:00am UTC](https://forum.rasa.com/t/yamlvalidationexception/51777/3 "2022-03-08T10:00:19Z")

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Yes, I can share it ma’am but where can I see the exception message?

 ![image](https://europe1.discourse-cdn.com/flex013/uploads/rasa/original/3X/7/4/743d85149288aac5bbf2b2c9b078c3127cc276b2.png)

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**Author:** ![anca](https://dub1.discourse-cdn.com/flex013/user_avatar/forum.rasa.com/anca/32/14540_2.png) [@anca](https://forum.rasa.com/u/anca)\
**Post date:** [March 8, 2022, 10:52am UTC](https://forum.rasa.com/t/yamlvalidationexception/51777/4 "2022-03-08T10:52:22Z")

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@DonJohn right after the sentence `Here are the errors found during validation` you should see more explanations.

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**Author:** ![DonJohn](https://avatars.discourse-cdn.com/v4/letter/d/a183cd/32.png) [@DonJohn](https://forum.rasa.com/u/DonJohn)\
**Post date:** [March 8, 2022, 11:16am UTC](https://forum.rasa.com/t/yamlvalidationexception/51777/5 "2022-03-08T11:16:07Z")

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![image](https://europe1.discourse-cdn.com/flex013/uploads/rasa/original/3X/8/c/8cd790225727f94ff45a900e35dc1cbae2b28ab9.png)It doesn’t show the errors

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**Author:** ![anca](https://dub1.discourse-cdn.com/flex013/user_avatar/forum.rasa.com/anca/32/14540_2.png) [@anca](https://forum.rasa.com/u/anca)\
**Post date:** [March 8, 2022, 12:43pm UTC](https://forum.rasa.com/t/yamlvalidationexception/51777/6 "2022-03-08T12:43:16Z")

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@DonJohn In that case I strongly suggest you check your domain file against the yaml schema specified [here for version 3.0](https://github.com/RasaHQ/rasa/blob/main/rasa/shared/utils/schemas/domain.yml). Version 2.0 schema is available [here](https://github.com/RasaHQ/rasa/blob/2.8.x/rasa/shared/utils/schemas/domain.yml).

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**Author:** ![DonJohn](https://avatars.discourse-cdn.com/v4/letter/d/a183cd/32.png) [@DonJohn](https://forum.rasa.com/u/DonJohn)\
**Post date:** [March 8, 2022, 1:31pm UTC](https://forum.rasa.com/t/yamlvalidationexception/51777/7 "2022-03-08T13:31:41Z")

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Do I need to edit my domain and follow what’s been specified in the version 2.0 schema? Or do I need to do over?

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**Author:** ![anca](https://dub1.discourse-cdn.com/flex013/user_avatar/forum.rasa.com/anca/32/14540_2.png) [@anca](https://forum.rasa.com/u/anca)\
**Post date:** [March 11, 2022, 9:32am UTC](https://forum.rasa.com/t/yamlvalidationexception/51777/8 "2022-03-11T09:32:42Z")

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@DonJohn Yes, your domain file needs to be amended to follow the 2.0 schema to avoid raising `YamlValidationException`.