How to fix "Your custom PostCSS configuration must export a `plugins` key."
I updated an old Next.js app and when I ran npm run dev I had this error:
error - ./node_modules/next/dist/build/webpack/loaders/css-loader/src/index.js??ruleSet[1].rules[2].oneOf[8].use[1]!./node_modules/next/dist/build/webpack/loaders/postcss-loader/src/index.js??ruleSet[1].rules[2].oneOf[8].use[2]!./styles/globals.css
Error: Your custom PostCSS configuration must export a `plugins` key.
I added a postcss.config.json file with this content:
{
"plugins": []
}
and the app started working again.
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