# YamlSyntaxException issue

**URL:** <https://forum.rasa.com/t/yamlsyntaxexception-issue/48280>\
**Category:** Rasa Open Source\
**Created:** [October 7, 2021, 7:50am UTC](https://forum.rasa.com/t/yamlsyntaxexception-issue/48280 "2021-10-07T07:50:15Z")\
**Posts on this page:** 3\
**Page:** 1

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**Author:** ![azmatsiddique](https://dub1.discourse-cdn.com/flex013/user_avatar/forum.rasa.com/azmatsiddique/32/17459_2.png) [@azmatsiddique](https://forum.rasa.com/u/azmatsiddique)\
**Post date:** [October 7, 2021, 7:50am UTC](https://forum.rasa.com/t/yamlsyntaxexception-issue/48280/1 "2021-10-07T07:50:15Z")

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yamlSyntaxException: Failed to read ‘/Users/azmatsiddique/Desktop/rr/domain.yml’. while constructing a mapping in “/Users/azmatsiddique/Desktop/rr/domain.yml”, line 1, column 1: intents: ^ (line: 1) found duplicate key “auto\_fill” with value “False” (original value: “False”) in “/Users/azmatsiddique/Desktop/rr/domain.yml”, line 16, column 1: auto\_fill: False ^ (line: 16)

You can use [https://yamlchecker.com/](https://yamlchecker.com/) to validate the YAML syntax of your file.

 ![Screenshot 2021-10-07 at 1.12.23 PM](https://europe1.discourse-cdn.com/flex013/uploads/rasa/original/3X/d/9/d914fcc24db5aa7741e0d8915fbc0b3f0a190b77.png)

Please resolve this issue

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**Author:** ![nik202](https://dub1.discourse-cdn.com/flex013/user_avatar/forum.rasa.com/nik202/32/16098_2.png) [@nik202](https://forum.rasa.com/u/nik202)\
**Post date:** [October 7, 2021, 7:58am UTC](https://forum.rasa.com/t/yamlsyntaxexception-issue/48280/2 "2021-10-07T07:58:47Z")

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@azmatsiddique please check the proper indentation and syntax of the training data format : [Training Data Format](https://rasa.com/docs/rasa/training-data-format/)

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**Author:** ![ChrisRahme](https://dub1.discourse-cdn.com/flex013/user_avatar/forum.rasa.com/chrisrahme/32/15572_2.png) [@ChrisRahme](https://forum.rasa.com/u/ChrisRahme)\
**Post date:** [October 7, 2021, 8:56am UTC](https://forum.rasa.com/t/yamlsyntaxexception-issue/48280/3 "2021-10-07T08:56:21Z")

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> [@azmatsiddique](#):
>
> You can use [https://yamlchecker.com/](https://yamlchecker.com/) to validate the YAML syntax of your file.

` `