# Need help! Yeelight CubeLite fails to link in SignalRGB (Cannot read property 'id' of undefined)

**URL:** <https://forum.signalrgb.com/t/need-help-yeelight-cubelite-fails-to-link-in-signalrgb-cannot-read-property-id-of-undefined/10303>\
**Category:** Support\
**Created:** [October 30, 2026, 12:07pm UTC](https://forum.signalrgb.com/t/need-help-yeelight-cubelite-fails-to-link-in-signalrgb-cannot-read-property-id-of-undefined/10303 "2026-10-30T12:07:31Z")\
**Posts on this page:** 4\
**Page:** 1

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**Author:** ![luishfono](https://sea1.discourse-cdn.com/flex015/user_avatar/forum.signalrgb.com/luishfono/32/2108_2.png) [@luishfono](https://forum.signalrgb.com/u/luishfono)\
**Post date:** [October 30, 2026, 12:07pm UTC](https://forum.signalrgb.com/t/need-help-yeelight-cubelite-fails-to-link-in-signalrgb-cannot-read-property-id-of-undefined/10303/1 "2026-10-30T12:07:31Z")

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Need help with Yeelight CubeLite in SignalRGB! The official addon finds my device via UDP on 2.4GHz with LAN control on, but clicking “Link” fails with: `Cannot read property 'id' of undefined`.

Inside Yeelight.js, `cachedController` returns undefined. Patching the script works, but SignalRGB auto-overwrites it on launch, and Read-Only freezes the app at startup.

Has anyone found a workaround to link CubeLite or stop SignalRGB from overwriting local addon edits without hanging? Any tip is appreciated!

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**Author:** ![Benny](https://sea1.discourse-cdn.com/flex015/user_avatar/forum.signalrgb.com/benny/32/1893_2.png) [@Benny](https://forum.signalrgb.com/u/Benny)\
**Post date:** [October 30, 2026, 5:07pm UTC](https://forum.signalrgb.com/t/need-help-yeelight-cubelite-fails-to-link-in-signalrgb-cannot-read-property-id-of-undefined/10303/2 "2026-10-30T17:07:45Z")

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This appears to be an issue with the Yeelight add-on rather than your network settings.

Please avoid manually editing `Yeelight.js` or setting it to read-only, as this can cause SignalRGB to hang during startup.

Could you submit a bug report through SignalRGB using the bug report icon? Please include the error message and mention that it occurs when clicking Link on your Yeelight CubeLite.

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**Author:** ![luishfono](https://sea1.discourse-cdn.com/flex015/user_avatar/forum.signalrgb.com/luishfono/32/2108_2.png) [@luishfono](https://forum.signalrgb.com/u/luishfono)\
**Post date:** [October 30, 2026, 5:41pm UTC](https://forum.signalrgb.com/t/need-help-yeelight-cubelite-fails-to-link-in-signalrgb-cannot-read-property-id-of-undefined/10303/3 "2026-10-30T17:41:02Z")

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Hello Benny,

I tested the issue on the latest SignalRGB Beta version, but the behavior and crash persist without any change.

Additionally, I have two separate CubeLite units, and neither of them connects—both trigger the exact same error in the logs.

Best regards,  
Luís Henrique Ferreira

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**Author:** ![SignalBadger](https://sea1.discourse-cdn.com/flex015/user_avatar/forum.signalrgb.com/signalbadger/32/1654_2.png) [@SignalBadger](https://forum.signalrgb.com/u/SignalBadger)\
**Post date:** [October 31, 2026, 1:45am UTC](https://forum.signalrgb.com/t/need-help-yeelight-cubelite-fails-to-link-in-signalrgb-cannot-read-property-id-of-undefined/10303/4 "2026-10-31T01:45:55Z")

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To use your version of the plugin, you’ll need to rename it and place it in the custom plugins folder.

> **[SignalRGB File Locations](https://docs.signalrgb.com/guides/installation-setup/file-locations/)**
>
> Reference for where SignalRGB stores its files, logs, effects, and configuration data on your PC.

It’s being overwritten likely because it’s in the same location and/or has the same name as the one being pushed by the app servers.

If you send us your fix, we can help escalate that! Send a bug report or email us 🙂