# Tracker update error

**URL:** <https://forum.rasa.com/t/tracker-update-error/922>\
**Category:** Rasa Open Source\
**Created:** [September 7, 2018, 3:23am UTC](https://forum.rasa.com/t/tracker-update-error/922 "2018-09-07T03:23:57Z")\
**Posts on this page:** 4\
**Page:** 1

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**Author:** ![yuxuan2018](https://avatars.discourse-cdn.com/v4/letter/y/48db29/32.png) [@yuxuan2018](https://forum.rasa.com/u/yuxuan2018)\
**Post date:** [September 7, 2018, 3:23am UTC](https://forum.rasa.com/t/tracker-update-error/922/1 "2018-09-07T03:23:57Z")

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![Screenshot%20from%202018-09-07%2011-09-27](https://europe1.discourse-cdn.com/flex013/uploads/rasa/original/1X/c8c33fd735be2cad55e6c3b14a665fb888d25ef6.png)following picture is the reault of the postman: ![Screenshot%20from%202018-09-07%2011-22-53](https://europe1.discourse-cdn.com/flex013/uploads/rasa/original/1X/5d63d2565154a5fdfc079a588bc253ca1832663d.png)

 ![Screenshot%20from%202018-09-07%2011-34-53](https://europe1.discourse-cdn.com/flex013/uploads/rasa/original/1X/63fcd1e68d2cb05eb6d82ff1dde94193192cf521.png)

 ![Screenshot%20from%202018-09-07%2011-35-04](https://europe1.discourse-cdn.com/flex013/uploads/rasa/original/1X/b68733e5705d5e46292eb3c4c5764b7d0373fb15.png)

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**Author:** ![akelad](https://dub1.discourse-cdn.com/flex013/user_avatar/forum.rasa.com/akelad/32/69_2.png) [@akelad](https://forum.rasa.com/u/akelad)\
**Post date:** [September 7, 2018, 12:28pm UTC](https://forum.rasa.com/t/tracker-update-error/922/2 "2018-09-07T12:28:02Z")

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Have you tried with json.dumps?

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**Author:** ![derdanielb](https://avatars.discourse-cdn.com/v4/letter/d/58956e/32.png) [@derdanielb](https://forum.rasa.com/u/derdanielb)\
**Post date:** [September 7, 2018, 1:15pm UTC](https://forum.rasa.com/t/tracker-update-error/922/3 "2018-09-07T13:15:30Z")

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In the lasted version somehow the endpoint

**PUT** `/conversations/(str: sender_id)/tracker`

was moved to

**PUT** `/conversations/(str: sender_id)/tracker/events`.

This change is not documented, I figured it out myself.

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**Author:** ![akelad](https://dub1.discourse-cdn.com/flex013/user_avatar/forum.rasa.com/akelad/32/69_2.png) [@akelad](https://forum.rasa.com/u/akelad)\
**Post date:** [September 10, 2018, 8:32am UTC](https://forum.rasa.com/t/tracker-update-error/922/4 "2018-09-10T08:32:49Z")

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@derdanielb would you mind submitting a PR to the HTTP API docs to update that?