# JsMediaSDK\_Instance is not defined - Meeting SDK

**URL:** <https://devforum.zoom.us/t/jsmediasdk-instance-is-not-defined-meeting-sdk/124353>\
**Category:** Meeting SDK\
**Created:** [January 11, 2025, 6:46am UTC](https://devforum.zoom.us/t/jsmediasdk-instance-is-not-defined-meeting-sdk/124353 "2025-01-11T06:46:22Z")\
**Posts on this page:** 2\
**Page:** 1

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**Author:** ![zoomsdkpoc](https://sea2.discourse-cdn.com/flex016/user_avatar/devforum.zoom.us/zoomsdkpoc/32/66096_2.png) [@zoomsdkpoc](https://devforum.zoom.us/u/zoomsdkpoc)\
**Post date:** [January 11, 2025, 6:46am UTC](https://devforum.zoom.us/t/jsmediasdk-instance-is-not-defined-meeting-sdk/124353/1 "2025-01-11T06:46:22Z")

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**Meeting SDK Type and Version**  
“@zoom/meetingsdk”: “^3.10.0”  
“react”: “17.0.2”

**Description**  
ZoomMtg.join throwing _ **JsMediaSDK\_Instance is not defined** _ error.  
here I’m attaching my signature token for reference

> eyJhbGciOiJIUzI1NiIsInR5cCI6IkpXVCJ9.eyJhcHBLZXkiOiJBRkg3aDhiU1RQV3JWS2ZPbEhrQ1EiLCJzZGtLZXkiOiJBRkg3aDhiU1RQV3JWS2ZPbEhrQ1EiLCJtbiI6ODQwODA0Nzk0MjAsInJvbGUiOjAsImlhdCI6MTczNjU3NzE0NywiZXhwIjoxNzM2NTg0MzQ3LCJ0b2tlbkV4cCI6MTczNjU4NDM0N30.OWLAPFxAb0n4LKr0CEZzVtyszRdVQxqTfjScujPEdcg

I’m also getting this message in console. Could it be related to the issue?

> To use gallery view on Chrome/Chromium browsers, SharedArrayBuffer is required.

**Error?**  
ReferenceError: JsMediaSDK\_Instance is not defined  
at wt (zoomus-websdk-zoommtgMain.umd.min.js:2:1589892)

**Troubleshooting Routes**  
I have tested zoom/meetingsdk-react-sample there it is working fine but when I’m trying to do the same in my react application getting this error. I have tried to add the code but that didn’t work out.  
ZoomMtg.setZoomJSLib(‘source-zoom-us-url/3.10.0/lib’, ‘/av’);

**How To Reproduce**  
_Steps to reproduce the behavior including:_  
\*1. Not added any Authentication method so far

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<div class="post-metadata">

**Author:** ![freelancer.nak](https://sea2.discourse-cdn.com/flex016/user_avatar/devforum.zoom.us/freelancer.nak/32/40968_2.png) [@freelancer.nak](https://devforum.zoom.us/u/freelancer.nak)\
**Post date:** [January 12, 2025, 2:09pm UTC](https://devforum.zoom.us/t/jsmediasdk-instance-is-not-defined-meeting-sdk/124353/2 "2025-01-12T14:09:21Z")

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@zoomsdkpoc

Please upgrade the React version first, then properly load the SDK inside `useEffect` or monitor the session.

Here’s [how to integrate the Zoom Meeting SDK using ReactJS](https://youtu.be/4BgkLvH7T0Y).

If still any query please ask here.

Thanks.