React-markdown: Markdown as string not working (remark-gfm warning)

[sandrina-p]

Subject of the issue

I'm building a React app. When I install react-markdown and pass the markdown as a string it gives a console warning:

[remark-gfm] Warning: please upgrade to remark 13 to use this plugin
at ReactMarkdown

I have installed remark and it still happens.

import ReactMarkdown from 'react-markdown'
import gfm from 'remark-gfm'

// ...

<ReactMarkdown plugins={[gfm]} children={'#Hello world'}></ReactMarkdown>

Your environment

• OS: macos Catalina
• Packages: "remark": "^13.0.0", "react-markdown": "^4.3.1", "remark-gfm": "^1.0.0",
• Env: node 12.18.2, npm 6.14.5

Steps to reproduce

Codesandox: https://codesandbox.io/s/react-markdown-bug-remark-gfm-13-jvi54

Expected behavior

Not showing a warning

Actual behavior

Shows incorrect warning

[wooorm]

https://github.com/remarkjs/react-markdown/issues/470

[wooorm]

Fixed in 5.0.0!