# Some variables are used but not defined

**URL:** <https://discuss.dgraph.io/t/some-variables-are-used-but-not-defined/17449>\
**Category:** Dgraph\
**Created:** [June 24, 2022, 10:11am UTC](https://discuss.dgraph.io/t/some-variables-are-used-but-not-defined/17449 "2022-06-24T10:11:12Z")\
**Posts on this page:** 2\
**Page:** 1

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**Author:** ![wpeng](https://avatars.discourse-cdn.com/v4/letter/w/45deac/32.png) [@wpeng](https://discuss.dgraph.io/u/wpeng)\
**Post date:** [June 24, 2022, 10:11am UTC](https://discuss.dgraph.io/t/some-variables-are-used-but-not-defined/17449/1 "2022-06-24T10:11:12Z")

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hello,  
I met a problem，as shown  
`fvvv` is defined, but it prompts undefined.

 ![image](https://canada1.discourse-cdn.com/flex007/uploads/dgraph/original/2X/3/387d12f03ed82d7bd020a30cd683bd83f5c8dd5c.png)  
 ![image](https://canada1.discourse-cdn.com/flex007/uploads/dgraph/original/2X/3/32cf9e0cbbeb5576c40a66bab279cace3481cf26.png)

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<div class="post-metadata">

**Author:** ![wpeng](https://avatars.discourse-cdn.com/v4/letter/w/45deac/32.png) [@wpeng](https://discuss.dgraph.io/u/wpeng)\
**Post date:** [June 27, 2022, 2:58am UTC](https://discuss.dgraph.io/t/some-variables-are-used-but-not-defined/17449/2 "2022-06-27T02:58:31Z")

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avg is a keywords.