postcss error on build

[floflor]

Hi everyone ! I'm having a weird error when building my app on Jenkins. This comes from postcss and I can't find any information online.

Console output:

Error [ERR_PACKAGE_PATH_NOT_EXPORTED]: Package subpath './lib/parser' is not defined by "exports" in /app/node_modules/next/node_modules/postcss/package.json

PostCss version: 8.2.4

Any help would be appreciated ! 🙏🏼

[ai]

Very strange, we have this export https://github.com/postcss/postcss/blob/main/package.json#L26

What did you do before getting this error?

[floflor]

We noticed this error yesterday, we had an instance running perfectly on thursday, then we pushed three prs to development , just css corrections and some logic fixes, but nothing related to postcss or package config.

[ai]

PostCSS 7.x on new Node.js 17 have exactly the same error.

Try to check your npm ls or lock file for old PostCSS version.

[floflor]

Hey Andrey , we updated node version to 12 on docker file and this fixed the issue, thank you so much for your help.

[ai]

Good to know. I just recommend update further to Node.js 14 or 16 sober Node.js 12 is old and will be deprecated next year (so you will again have unknown errors).

[patra0o]

Hi, I'm on Node.js 18 and I do not understand why I get build errors. I'm not even using PostCSS directly in my project.