# React Sample App not working due to invalid signature

**URL:** <https://devforum.zoom.us/t/react-sample-app-not-working-due-to-invalid-signature/123531>\
**Category:** Meeting SDK\
**Created:** [December 28, 2024, 5:10pm UTC](https://devforum.zoom.us/t/react-sample-app-not-working-due-to-invalid-signature/123531 "2024-12-28T17:10:37Z")\
**Posts on this page:** 1\
**Showing post:** 4

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**Author:** ![donte.zoom](https://sea2.discourse-cdn.com/flex016/user_avatar/devforum.zoom.us/donte.zoom/32/24412_2.png) [@donte.zoom](https://devforum.zoom.us/u/donte.zoom)\
**Post date:** [January 9, 2025, 3:10pm UTC](https://devforum.zoom.us/t/react-sample-app-not-working-due-to-invalid-signature/123531/4 "2025-01-09T15:10:35Z")

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@latenytcoffee ,  
Have you had a chance to check out this video on troubleshooting SDK signatures for Meeting SDK:

> [@Failed to join meeting error code 3712](https://devforum.zoom.us/t/failed-to-join-meeting-error-code-3712/124197/3):
>
> @vitieubao83 , Thank you for posting in the Zoom Developer Forum. We actually have Youtube video you can reference for debugging your signature. Here is the link: [[Decoding JWT for Authorization Errors for Zoom Meeting SDK] ](https://www.youtube.com/watch?v=F3l5RJoEKP4) Take a look and let us know if you still are encounter an issue.

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