# Invalid index name \[\_xpack\], must not start with '\_', '-', or '+'"

**URL:** <https://discuss.elastic.co/t/invalid-index-name-xpack-must-not-start-with-or/157270>\
**Category:** Elasticsearch\
**Created:** [November 19, 2018, 5:57am UTC](https://discuss.elastic.co/t/invalid-index-name-xpack-must-not-start-with-or/157270 "2018-11-19T05:57:14Z")\
**Posts on this page:** 6\
**Page:** 1

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**Author:** ![pidugusundeep](https://avatars.discourse-cdn.com/v4/letter/p/ee7513/32.png) [@pidugusundeep](https://discuss.elastic.co/u/pidugusundeep)\
**Post date:** [November 19, 2018, 5:57am UTC](https://discuss.elastic.co/t/invalid-index-name-xpack-must-not-start-with-or/157270/1 "2018-11-19T05:57:14Z")

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Hey i was just trying to use Elasticsearch sql and just installed xpack on my Elasticsearch and using kibana dev tools to query my documents i am unable to use  
`

> GET /\_xpack/sql?format=txt

`

it always throws

> {  
> "error": {  
> "root\_cause": [  
> {  
> "type": "invalid\_index\_name\_exception",  
> "reason": "Invalid index name [_xpack], must not start with '_', '-', or '+'",  
> "index\_uuid": "_na_",  
> "index": "\_xpack"  
> }  
> ],  
> "type": "invalid\_index\_name\_exception",  
> "reason": "Invalid index name [_xpack], must not start with '_', '-', or '+'",  
> "index\_uuid": "_na_",  
> "index": "\_xpack"  
> },  
> "status": 400  
> }

can someone help me fix this ?

---

<div class="post-metadata">

**Author:** ![Christian\_Dahlqvist](https://sea2.discourse-cdn.com/elastic/user_avatar/discuss.elastic.co/christian_dahlqvist/32/4617_2.png) [@Christian\_Dahlqvist](https://discuss.elastic.co/u/Christian_Dahlqvist)\
**Post date:** [November 19, 2018, 6:05am UTC](https://discuss.elastic.co/t/invalid-index-name-xpack-must-not-start-with-or/157270/2 "2018-11-19T06:05:49Z")

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Which version of Elasticsearch are you using

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<div class="post-metadata">

**Author:** ![pidugusundeep](https://avatars.discourse-cdn.com/v4/letter/p/ee7513/32.png) [@pidugusundeep](https://discuss.elastic.co/u/pidugusundeep)\
**Post date:** [November 19, 2018, 6:32am UTC](https://discuss.elastic.co/t/invalid-index-name-xpack-must-not-start-with-or/157270/3 "2018-11-19T06:32:40Z")

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Iam using 6.2.4 elastic search and kibana

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<div class="post-metadata">

**Author:** ![Christian\_Dahlqvist](https://sea2.discourse-cdn.com/elastic/user_avatar/discuss.elastic.co/christian_dahlqvist/32/4617_2.png) [@Christian\_Dahlqvist](https://discuss.elastic.co/u/Christian_Dahlqvist)\
**Post date:** [November 19, 2018, 6:34am UTC](https://discuss.elastic.co/t/invalid-index-name-xpack-must-not-start-with-or/157270/4 "2018-11-19T06:34:37Z")

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SQL was [launched as part of the 6.3 release](https://www.elastic.co/guide/en/elasticsearch/reference/6.5/release-highlights-6.3.0.html#_sql), which is why it is not working for 6.2. You will need to upgrade to try it out.

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<div class="post-metadata">

**Author:** ![pidugusundeep](https://avatars.discourse-cdn.com/v4/letter/p/ee7513/32.png) [@pidugusundeep](https://discuss.elastic.co/u/pidugusundeep)\
**Post date:** [November 19, 2018, 6:46am UTC](https://discuss.elastic.co/t/invalid-index-name-xpack-must-not-start-with-or/157270/5 "2018-11-19T06:46:26Z")

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Thanks Man

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<div class="post-metadata">

**Author:** ![system](https://us1.discourse-cdn.com/elastic/original/3X/1/a/1ac57faf039f6b580b3f104ef42a2a89e41014de.png) [@system](https://discuss.elastic.co/u/system)\
**Post date:** [December 17, 2018, 6:46am UTC](https://discuss.elastic.co/t/invalid-index-name-xpack-must-not-start-with-or/157270/6 "2018-12-17T06:46:31Z")

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