Warning: Can't perform a React state update on an unmounted component.

[moo611]

Warning: Can't perform a React state update on an unmounted component. This is a no-op, but it indicates a memory leak in your application. To fix, cancel all subscriptions and asynchronous tasks in a useEffect cleanup function.
in Scanner (at SceneView.tsx:132)

[lpfrenette]

As stated in the warning message did you remove all listener in a useEffect hook or in the componentWillUnmount function?
This errer usually happen when you have a setTimeout or a fetch/axios call to a remote resource and the response arrives after your component is unmounted.

[taongocson]

https://dev.to/collegewap/react-prevent-state-updates-on-unmounted-components-2j4d