# Mobile Video SDK error message

**URL:** <https://devforum.zoom.us/t/mobile-video-sdk-error-message/51411>\
**Category:** Video SDK\
**Created:** [May 31, 2021, 6:15am UTC](https://devforum.zoom.us/t/mobile-video-sdk-error-message/51411 "2021-05-31T06:15:35Z")\
**Posts on this page:** 5\
**Page:** 1

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**Author:** ![rkqehd12](https://sea2.discourse-cdn.com/flex016/user_avatar/devforum.zoom.us/rkqehd12/32/27732_2.png) [@rkqehd12](https://devforum.zoom.us/u/rkqehd12)\
**Post date:** [May 31, 2021, 6:15am UTC](https://devforum.zoom.us/t/mobile-video-sdk-error-message/51411/1 "2021-05-31T06:15:35Z")

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**Description**

when i create host this error message is showing

1. iOS : Error Code 16 Seesion Join Faild
2. AOS : Error Code 2003

**Which Mobile Video SDK version?**  
Iphone 12

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**Author:** ![Michael\_Condon](https://sea2.discourse-cdn.com/flex016/user_avatar/devforum.zoom.us/michael_condon/32/13543_2.png) [@Michael\_Condon](https://devforum.zoom.us/u/Michael_Condon)\
**Post date:** [June 1, 2021, 8:42pm UTC](https://devforum.zoom.us/t/mobile-video-sdk-error-message/51411/2 "2021-06-01T20:42:12Z")

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Hey @rkqehd12,

Thanks for using the dev forum!

This looks to be an issue with your JWT. Can you check out this forum thread: [Failed to join session](https://devforum.zoom.us/t/failed-to-join-session/51406)

Thanks!  
Michael

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**Author:** ![rkqehd12](https://sea2.discourse-cdn.com/flex016/user_avatar/devforum.zoom.us/rkqehd12/32/27732_2.png) [@rkqehd12](https://devforum.zoom.us/u/rkqehd12)\
**Post date:** [June 2, 2021, 1:13am UTC](https://devforum.zoom.us/t/mobile-video-sdk-error-message/51411/3 "2021-06-02T01:13:08Z")

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this is client SDK. i am using video SDK currently

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**Author:** ![Michael\_Condon](https://sea2.discourse-cdn.com/flex016/user_avatar/devforum.zoom.us/michael_condon/32/13543_2.png) [@Michael\_Condon](https://devforum.zoom.us/u/Michael_Condon)\
**Post date:** [June 2, 2021, 6:32pm UTC](https://devforum.zoom.us/t/mobile-video-sdk-error-message/51411/4 "2021-06-02T18:32:51Z")

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Hey @rkqehd12,

The steps should be the same aside from the payload.

Thanks!  
Michael

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<div class="post-metadata">

**Author:** ![system](https://us1.discourse-cdn.com/flex016/uploads/zoomdeveloper/original/3X/6/1/614bdd549b610bbaa46ff934617683a02bdaa03c.png) [@system](https://devforum.zoom.us/u/system)\
**Post date:** [July 3, 2021, 4:33am UTC](https://devforum.zoom.us/t/mobile-video-sdk-error-message/51411/5 "2021-07-03T04:33:09Z")

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