reactjs - React 16: Warning: Expected server HTML to contain a matching <div> in <body>

Question

asked Oct 24, 2021 in Technique[技术] by 深蓝 (71.8m points)

Since upgrading to React 16 I get this error message:

warning.js:33 Warning: Expected server HTML to contain a matching <div> in <body>.

What is generally causing this error message and how can it be fixed?

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1 Answer

深蓝 · Answer 1 · 2021-10-23T19:18:23+0000

If you use ReactDOM.hydrate to start web application, you will see this warning.

If your application does not use server-side rendering (ssr), please use ReactDOM.render to start.