When use ComponentDidMount() I found this error : Can't call setState

Question

I found this error :

Can\'t call setState (or forceUpdate) on an unmounted component. This is a no-op, but it indicates a memory leak in your applica

Answer 1

You're doing an asynchronous action (loadEntityNameById) that sets the state for the component when it finishes. By that time, your Breadcrumbs component may have been unmounted, and the error is thrown.