# Mapping Error in Kibana 5.6.x

**URL:** <https://discuss.elastic.co/t/mapping-error-in-kibana-5-6-x/101356>\
**Category:** Kibana\
**Created:** [September 21, 2017, 2:48pm UTC](https://discuss.elastic.co/t/mapping-error-in-kibana-5-6-x/101356 "2017-09-21T14:48:14Z")\
**Posts on this page:** 1\
**Showing post:** 4

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**Author:** ![1004lisa](https://avatars.discourse-cdn.com/v4/letter/1/2bfe46/32.png) [@1004lisa](https://discuss.elastic.co/u/1004lisa)\
**Post date:** [September 22, 2017, 6:29am UTC](https://discuss.elastic.co/t/mapping-error-in-kibana-5-6-x/101356/4 "2017-09-22T06:29:54Z")

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I also occurred this error.

you must upgrade to 5.6.1

and fix it refer below url

> [@Upgrade issue with Elastic Stack 5.6.0, workaround option until fix is available](https://discuss.elastic.co/t/upgrade-issue-with-elastic-stack-5-6-0-workaround-option-until-fix-is-available/100595):
>
> Since the release of Elastic Stack 5.6.0, we’ve discovered an issue during the upgrade process to this version. Who is affected Anyone upgrading a cluster that has indexes created with Elasticsearch 2.x or prior. This does not affect users installing a fresh 5.6 cluster nor those who started their Elastic journey with the 5.x releases. Symptom The problem is most visible through Kibana. After attempting to login to Kibana post-upgrade, the following error appears:

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