problem description

I recently worked on a homogeneous react project, and my client is relatively simple and does not require a redux data container. Now the isomorphism uses server-side rendering, but the setState method in my client does not seem to work on the server side and will report an error.

Warning: setState(...): Can only update a mounting component. This usually means you called setState() outside componentWillMount() on theserver. This is a no-op.

what methods have you tried

so I guessed that there is no data container such as redux, which can not be used properly.