# Run custom tracks get type error

**URL:** <https://discuss.elastic.co/t/run-custom-tracks-get-type-error/271520>\
**Category:** Elasticsearch\
**Tags:** rally\
**Created:** [April 28, 2021, 1:24pm UTC](https://discuss.elastic.co/t/run-custom-tracks-get-type-error/271520 "2021-04-28T13:24:03Z")\
**Posts on this page:** 1\
**Showing post:** 2

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**Author:** ![GITnewfish](https://sea2.discourse-cdn.com/elastic/user_avatar/discuss.elastic.co/gitnewfish/32/87303_2.png) [@GITnewfish](https://discuss.elastic.co/u/GITnewfish)\
**Post date:** [April 29, 2021, 9:04am UTC](https://discuss.elastic.co/t/run-custom-tracks-get-type-error/271520/2 "2021-04-29T09:04:22Z")

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![image](https://us1.discourse-cdn.com/elastic/original/3X/9/3/939a4fd3a6a6c3e4881ce732847713f5dd80137f.png)

I add this， then it works.

But the doc said this needn't, I think maybe the doc need to modify.

 ![image](https://us1.discourse-cdn.com/elastic/original/3X/6/9/6960037a4a2e6a26af147333ccf970f55b353972.png)

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