Cannot handle unknown node raw while migrating to MDX 2

[handotdev]

Hi everyone! I'm trying to migrate a legacy NextJS project into MDX 2. I ported everything to support ESM modules, and upgraded the following mdx dependencies from

"@mdx-js/loader": "^1.6.21",
"@next/mdx": "^10.0.1",

to

"@mdx-js/loader": "^2.1.3",
"@mdx-js/react": "^2.1.3",
"@next/mdx": "^12.2.5",

But am now presented with the following error. I've tried installing rehype-raw according to this post but it didn't solve it for me.

[wooorm]

See the previous discussion: #2114.

[wooorm]

This is likely due to a certain plugin you are using. Which should be updated.
Or, you’re loading plain markdown. In which case, we don’t pass strings of HTML through to React (we can’t; that takes a ton of code. rehype-raw does that.)