# React UIKit v3 error - TypeError: Cannot read properties of undefined (reading 'channelUrl')

**URL:** <https://community.sendbird.com/t/react-uikit-v3-error-typeerror-cannot-read-properties-of-undefined-reading-channelurl/6884>\
**Category:** React\
**Tags:** uikit\
**Created:** [March 25, 2023, 1:10pm UTC](https://community.sendbird.com/t/react-uikit-v3-error-typeerror-cannot-read-properties-of-undefined-reading-channelurl/6884 "2023-03-25T13:10:59Z")\
**Posts on this page:** 3\
**Page:** 1

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**Author:** ![minhdat97](https://sea2.discourse-cdn.com/flex020/user_avatar/community.sendbird.com/minhdat97/32/1811_2.png) [@minhdat97](https://community.sendbird.com/u/minhdat97)\
**Post date:** [March 25, 2023, 1:10pm UTC](https://community.sendbird.com/t/react-uikit-v3-error-typeerror-cannot-read-properties-of-undefined-reading-channelurl/6884/1 "2023-03-25T13:10:59Z")

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Hello,  
I’m upgrading React UIKit from v3.4.2 to v3.4.3 and got an error message TypeError: Cannot read properties of undefined (reading ‘channelUrl’)

The error message:

 ![image](https://us1.discourse-cdn.com/flex020/uploads/sendbird/original/2X/8/8933eb8f9df70d8d33f931a8aa94bd22ef06d802.png)

My project enviroments following:

- Nextjs: ^12.3.1,
- React: ^18.2.0,
- @sendbird/uikit-react: ^3.4.3

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<div class="post-metadata">

**Author:** ![minhdat97](https://sea2.discourse-cdn.com/flex020/user_avatar/community.sendbird.com/minhdat97/32/1811_2.png) [@minhdat97](https://community.sendbird.com/u/minhdat97)\
**Post date:** [March 25, 2023, 1:11pm UTC](https://community.sendbird.com/t/react-uikit-v3-error-typeerror-cannot-read-properties-of-undefined-reading-channelurl/6884/2 "2023-03-25T13:11:18Z")

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@Sravan_S Hi Sravan,  
Can you help me with this problem?

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<div class="post-metadata">

**Author:** ![Tyler](https://sea2.discourse-cdn.com/flex020/user_avatar/community.sendbird.com/tyler/32/810_2.png) [@Tyler](https://community.sendbird.com/u/Tyler)\
**Post date:** [March 27, 2023, 3:12am UTC](https://community.sendbird.com/t/react-uikit-v3-error-typeerror-cannot-read-properties-of-undefined-reading-channelurl/6884/3 "2023-03-27T03:12:39Z")

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Hello @minhdat97,

It would be best if you could provide us a reproducible sample using something like codesandbox or stackblitz.