I m testing `2 4 0 Beta2` I m using `cssnano` and `postcss` kotlinlang #webassembly

I'm testing `2.4.0-Beta2`. I'm using `cssnano` and...

Robert Jaros

05/11/2026, 8:43 AM

I'm testing

2.4.0-Beta2

. I'm using

cssnano

and

postcss

dependencies in my project. WasmJS KGP tooling uses Node 25 and I have a long warning (see thread):

Robert Jaros

05/11/2026, 8:45 AM

Copy code

> Task :kotlinWasmNpmInstall
npm warn EBADENGINE Unsupported engine {
npm warn EBADENGINE   package: 'cssnano@8.0.1',
npm warn EBADENGINE   required: { node: '^22.11.0 || ^24.11.0 || >=26.0' },
npm warn EBADENGINE   current: { node: 'v25.0.0', npm: '11.6.2' }
npm warn EBADENGINE }
npm warn EBADENGINE Unsupported engine {
npm warn EBADENGINE   package: 'cssnano-preset-default@8.0.1',
npm warn EBADENGINE   required: { node: '^22.11.0 || ^24.11.0 || >=26.0' },
npm warn EBADENGINE   current: { node: 'v25.0.0', npm: '11.6.2' }
npm warn EBADENGINE }
npm warn EBADENGINE Unsupported engine {
npm warn EBADENGINE   package: 'cssnano-utils@6.0.0',
npm warn EBADENGINE   required: { node: '^22.11.0 || ^24.11.0 || >=26.0' },
npm warn EBADENGINE   current: { node: 'v25.0.0', npm: '11.6.2' }
npm warn EBADENGINE }
npm warn EBADENGINE Unsupported engine {
npm warn EBADENGINE   package: 'postcss-colormin@8.0.0',
npm warn EBADENGINE   required: { node: '^22.11.0 || ^24.11.0 || >=26.0' },
npm warn EBADENGINE   current: { node: 'v25.0.0', npm: '11.6.2' }
npm warn EBADENGINE }
npm warn EBADENGINE Unsupported engine {
npm warn EBADENGINE   package: 'postcss-convert-values@8.0.0',
npm warn EBADENGINE   required: { node: '^22.11.0 || ^24.11.0 || >=26.0' },
npm warn EBADENGINE   current: { node: 'v25.0.0', npm: '11.6.2' }
npm warn EBADENGINE }
npm warn EBADENGINE Unsupported engine {
npm warn EBADENGINE   package: 'postcss-discard-comments@8.0.0',
npm warn EBADENGINE   required: { node: '^22.11.0 || ^24.11.0 || >=26.0' },
npm warn EBADENGINE   current: { node: 'v25.0.0', npm: '11.6.2' }
npm warn EBADENGINE }
npm warn EBADENGINE Unsupported engine {
npm warn EBADENGINE   package: 'postcss-discard-duplicates@8.0.0',
npm warn EBADENGINE   required: { node: '^22.11.0 || ^24.11.0 || >=26.0' },
npm warn EBADENGINE   current: { node: 'v25.0.0', npm: '11.6.2' }
npm warn EBADENGINE }
npm warn EBADENGINE Unsupported engine {
npm warn EBADENGINE   package: 'postcss-discard-empty@8.0.0',
npm warn EBADENGINE   required: { node: '^22.11.0 || ^24.11.0 || >=26.0' },
npm warn EBADENGINE   current: { node: 'v25.0.0', npm: '11.6.2' }
npm warn EBADENGINE }
npm warn EBADENGINE Unsupported engine {
npm warn EBADENGINE   package: 'postcss-discard-overridden@8.0.0',
npm warn EBADENGINE   required: { node: '^22.11.0 || ^24.11.0 || >=26.0' },
npm warn EBADENGINE   current: { node: 'v25.0.0', npm: '11.6.2' }
npm warn EBADENGINE }
npm warn EBADENGINE Unsupported engine {
npm warn EBADENGINE   package: 'postcss-merge-longhand@8.0.0',
npm warn EBADENGINE   required: { node: '^22.11.0 || ^24.11.0 || >=26.0' },
npm warn EBADENGINE   current: { node: 'v25.0.0', npm: '11.6.2' }
npm warn EBADENGINE }
npm warn EBADENGINE Unsupported engine {
npm warn EBADENGINE   package: 'postcss-merge-rules@8.0.0',
npm warn EBADENGINE   required: { node: '^22.11.0 || ^24.11.0 || >=26.0' },
npm warn EBADENGINE   current: { node: 'v25.0.0', npm: '11.6.2' }
npm warn EBADENGINE }
npm warn EBADENGINE Unsupported engine {
npm warn EBADENGINE   package: 'postcss-minify-font-values@8.0.0',
npm warn EBADENGINE   required: { node: '^22.11.0 || ^24.11.0 || >=26.0' },
npm warn EBADENGINE   current: { node: 'v25.0.0', npm: '11.6.2' }
npm warn EBADENGINE }
npm warn EBADENGINE Unsupported engine {
npm warn EBADENGINE   package: 'postcss-minify-gradients@8.0.0',
npm warn EBADENGINE   required: { node: '^22.11.0 || ^24.11.0 || >=26.0' },
npm warn EBADENGINE   current: { node: 'v25.0.0', npm: '11.6.2' }
npm warn EBADENGINE }
npm warn EBADENGINE Unsupported engine {
npm warn EBADENGINE   package: 'postcss-minify-params@8.0.0',
npm warn EBADENGINE   required: { node: '^22.11.0 || ^24.11.0 || >=26.0' },
npm warn EBADENGINE   current: { node: 'v25.0.0', npm: '11.6.2' }
npm warn EBADENGINE }
npm warn EBADENGINE Unsupported engine {
npm warn EBADENGINE   package: 'postcss-minify-selectors@8.0.1',
npm warn EBADENGINE   required: { node: '^22.11.0 || ^24.11.0 || >=26.0' },
npm warn EBADENGINE   current: { node: 'v25.0.0', npm: '11.6.2' }
npm warn EBADENGINE }
npm warn EBADENGINE Unsupported engine {
npm warn EBADENGINE   package: 'postcss-normalize-charset@8.0.0',
npm warn EBADENGINE   required: { node: '^22.11.0 || ^24.11.0 || >=26.0' },
npm warn EBADENGINE   current: { node: 'v25.0.0', npm: '11.6.2' }
npm warn EBADENGINE }
npm warn EBADENGINE Unsupported engine {
npm warn EBADENGINE   package: 'postcss-normalize-display-values@8.0.0',
npm warn EBADENGINE   required: { node: '^22.11.0 || ^24.11.0 || >=26.0' },
npm warn EBADENGINE   current: { node: 'v25.0.0', npm: '11.6.2' }
npm warn EBADENGINE }
npm warn EBADENGINE Unsupported engine {
npm warn EBADENGINE   package: 'postcss-normalize-positions@8.0.0',
npm warn EBADENGINE   required: { node: '^22.11.0 || ^24.11.0 || >=26.0' },
npm warn EBADENGINE   current: { node: 'v25.0.0', npm: '11.6.2' }
npm warn EBADENGINE }
npm warn EBADENGINE Unsupported engine {
npm warn EBADENGINE   package: 'postcss-normalize-repeat-style@8.0.0',
npm warn EBADENGINE   required: { node: '^22.11.0 || ^24.11.0 || >=26.0' },
npm warn EBADENGINE   current: { node: 'v25.0.0', npm: '11.6.2' }
npm warn EBADENGINE }
npm warn EBADENGINE Unsupported engine {
npm warn EBADENGINE   package: 'postcss-normalize-string@8.0.0',
npm warn EBADENGINE   required: { node: '^22.11.0 || ^24.11.0 || >=26.0' },
npm warn EBADENGINE   current: { node: 'v25.0.0', npm: '11.6.2' }
npm warn EBADENGINE }
npm warn EBADENGINE Unsupported engine {
npm warn EBADENGINE   package: 'postcss-normalize-timing-functions@8.0.0',
npm warn EBADENGINE   required: { node: '^22.11.0 || ^24.11.0 || >=26.0' },
npm warn EBADENGINE   current: { node: 'v25.0.0', npm: '11.6.2' }
npm warn EBADENGINE }
npm warn EBADENGINE Unsupported engine {
npm warn EBADENGINE   package: 'postcss-normalize-unicode@8.0.0',
npm warn EBADENGINE   required: { node: '^22.11.0 || ^24.11.0 || >=26.0' },
npm warn EBADENGINE   current: { node: 'v25.0.0', npm: '11.6.2' }
npm warn EBADENGINE }
npm warn EBADENGINE Unsupported engine {
npm warn EBADENGINE   package: 'postcss-normalize-url@8.0.0',
npm warn EBADENGINE   required: { node: '^22.11.0 || ^24.11.0 || >=26.0' },
npm warn EBADENGINE   current: { node: 'v25.0.0', npm: '11.6.2' }
npm warn EBADENGINE }
npm warn EBADENGINE Unsupported engine {
npm warn EBADENGINE   package: 'postcss-normalize-whitespace@8.0.0',
npm warn EBADENGINE   required: { node: '^22.11.0 || ^24.11.0 || >=26.0' },
npm warn EBADENGINE   current: { node: 'v25.0.0', npm: '11.6.2' }
npm warn EBADENGINE }
npm warn EBADENGINE Unsupported engine {
npm warn EBADENGINE   package: 'postcss-ordered-values@8.0.0',
npm warn EBADENGINE   required: { node: '^22.11.0 || ^24.11.0 || >=26.0' },
npm warn EBADENGINE   current: { node: 'v25.0.0', npm: '11.6.2' }
npm warn EBADENGINE }
npm warn EBADENGINE Unsupported engine {
npm warn EBADENGINE   package: 'postcss-reduce-initial@8.0.0',
npm warn EBADENGINE   required: { node: '^22.11.0 || ^24.11.0 || >=26.0' },
npm warn EBADENGINE   current: { node: 'v25.0.0', npm: '11.6.2' }
npm warn EBADENGINE }
npm warn EBADENGINE Unsupported engine {
npm warn EBADENGINE   package: 'postcss-reduce-transforms@8.0.0',
npm warn EBADENGINE   required: { node: '^22.11.0 || ^24.11.0 || >=26.0' },
npm warn EBADENGINE   current: { node: 'v25.0.0', npm: '11.6.2' }
npm warn EBADENGINE }
npm warn EBADENGINE Unsupported engine {
npm warn EBADENGINE   package: 'postcss-svgo@8.0.0',
npm warn EBADENGINE   required: { node: '^22.11.0 || ^24.11.0 || >=26.0' },
npm warn EBADENGINE   current: { node: 'v25.0.0', npm: '11.6.2' }
npm warn EBADENGINE }
npm warn EBADENGINE Unsupported engine {
npm warn EBADENGINE   package: 'postcss-unique-selectors@8.0.0',
npm warn EBADENGINE   required: { node: '^22.11.0 || ^24.11.0 || >=26.0' },
npm warn EBADENGINE   current: { node: 'v25.0.0', npm: '11.6.2' }
npm warn EBADENGINE }
npm warn EBADENGINE Unsupported engine {
npm warn EBADENGINE   package: 'stylehacks@8.0.0',
npm warn EBADENGINE   required: { node: '^22.11.0 || ^24.11.0 || >=26.0' },
npm warn EBADENGINE   current: { node: 'v25.0.0', npm: '11.6.2' }
npm warn EBADENGINE }

Robert Jaros

05/11/2026, 8:47 AM

Can KGP upgrade to node 26 before the release?

Robert Jaros

05/11/2026, 8:53 AM

What is the correct way to override node version? (

BaseNodeJsRootExtension.version

is deprecated with level Error)

turansky

05/11/2026, 10:05 AM

You can copy/check this plugin and 2 related.

turansky

05/11/2026, 10:05 AM

Or you can apply

latest-tools

plugin from KFC 😉

turansky

05/11/2026, 10:07 AM

1 file plugin is here

Robert Jaros

05/11/2026, 11:17 AM

Hmm ... I'm also have this:

Copy code

> Task :kotlinNpmInstall
npm warn ERESOLVE overriding peer dependency
npm warn EBADENGINE Unsupported engine {
npm warn EBADENGINE   package: 'cssnano@8.0.1',
npm warn EBADENGINE   required: { node: '^22.11.0 || ^24.11.0 || >=26.0' },
npm warn EBADENGINE   current: { node: 'v24.10.0', npm: '11.6.1' }
npm warn EBADENGINE }
npm warn EBADENGINE Unsupported engine {
npm warn EBADENGINE   package: 'cssnano-preset-default@8.0.1',
npm warn EBADENGINE   required: { node: '^22.11.0 || ^24.11.0 || >=26.0' },
npm warn EBADENGINE   current: { node: 'v24.10.0', npm: '11.6.1' }
npm warn EBADENGINE }
npm warn EBADENGINE Unsupported engine {
npm warn EBADENGINE   package: 'cssnano-utils@6.0.0',
npm warn EBADENGINE   required: { node: '^22.11.0 || ^24.11.0 || >=26.0' },
npm warn EBADENGINE   current: { node: 'v24.10.0', npm: '11.6.1' }
npm warn EBADENGINE }
npm warn EBADENGINE Unsupported engine {
npm warn EBADENGINE   package: 'postcss-colormin@8.0.0',
npm warn EBADENGINE   required: { node: '^22.11.0 || ^24.11.0 || >=26.0' },
npm warn EBADENGINE   current: { node: 'v24.10.0', npm: '11.6.1' }
npm warn EBADENGINE }
npm warn EBADENGINE Unsupported engine {
npm warn EBADENGINE   package: 'postcss-convert-values@8.0.0',
npm warn EBADENGINE   required: { node: '^22.11.0 || ^24.11.0 || >=26.0' },
npm warn EBADENGINE   current: { node: 'v24.10.0', npm: '11.6.1' }
npm warn EBADENGINE }
npm warn EBADENGINE Unsupported engine {
npm warn EBADENGINE   package: 'postcss-discard-comments@8.0.0',
npm warn EBADENGINE   required: { node: '^22.11.0 || ^24.11.0 || >=26.0' },
npm warn EBADENGINE   current: { node: 'v24.10.0', npm: '11.6.1' }
npm warn EBADENGINE }
npm warn EBADENGINE Unsupported engine {
npm warn EBADENGINE   package: 'postcss-discard-duplicates@8.0.0',
npm warn EBADENGINE   required: { node: '^22.11.0 || ^24.11.0 || >=26.0' },
npm warn EBADENGINE   current: { node: 'v24.10.0', npm: '11.6.1' }
npm warn EBADENGINE }
npm warn EBADENGINE Unsupported engine {
npm warn EBADENGINE   package: 'postcss-discard-empty@8.0.0',
npm warn EBADENGINE   required: { node: '^22.11.0 || ^24.11.0 || >=26.0' },
npm warn EBADENGINE   current: { node: 'v24.10.0', npm: '11.6.1' }
npm warn EBADENGINE }
npm warn EBADENGINE Unsupported engine {
npm warn EBADENGINE   package: 'postcss-discard-overridden@8.0.0',
npm warn EBADENGINE   required: { node: '^22.11.0 || ^24.11.0 || >=26.0' },
npm warn EBADENGINE   current: { node: 'v24.10.0', npm: '11.6.1' }
npm warn EBADENGINE }
npm warn EBADENGINE Unsupported engine {
npm warn EBADENGINE   package: 'postcss-merge-longhand@8.0.0',
npm warn EBADENGINE   required: { node: '^22.11.0 || ^24.11.0 || >=26.0' },
npm warn EBADENGINE   current: { node: 'v24.10.0', npm: '11.6.1' }
npm warn EBADENGINE }
npm warn EBADENGINE Unsupported engine {
npm warn EBADENGINE   package: 'postcss-merge-rules@8.0.0',
npm warn EBADENGINE   required: { node: '^22.11.0 || ^24.11.0 || >=26.0' },
npm warn EBADENGINE   current: { node: 'v24.10.0', npm: '11.6.1' }
npm warn EBADENGINE }
npm warn EBADENGINE Unsupported engine {
npm warn EBADENGINE   package: 'postcss-minify-font-values@8.0.0',
npm warn EBADENGINE   required: { node: '^22.11.0 || ^24.11.0 || >=26.0' },
npm warn EBADENGINE   current: { node: 'v24.10.0', npm: '11.6.1' }
npm warn EBADENGINE }
npm warn EBADENGINE Unsupported engine {
npm warn EBADENGINE   package: 'postcss-minify-gradients@8.0.0',
npm warn EBADENGINE   required: { node: '^22.11.0 || ^24.11.0 || >=26.0' },
npm warn EBADENGINE   current: { node: 'v24.10.0', npm: '11.6.1' }
npm warn EBADENGINE }
npm warn EBADENGINE Unsupported engine {
npm warn EBADENGINE   package: 'postcss-minify-params@8.0.0',
npm warn EBADENGINE   required: { node: '^22.11.0 || ^24.11.0 || >=26.0' },
npm warn EBADENGINE   current: { node: 'v24.10.0', npm: '11.6.1' }
npm warn EBADENGINE }
npm warn EBADENGINE Unsupported engine {
npm warn EBADENGINE   package: 'postcss-minify-selectors@8.0.1',
npm warn EBADENGINE   required: { node: '^22.11.0 || ^24.11.0 || >=26.0' },
npm warn EBADENGINE   current: { node: 'v24.10.0', npm: '11.6.1' }
npm warn EBADENGINE }
npm warn EBADENGINE Unsupported engine {
npm warn EBADENGINE   package: 'postcss-normalize-charset@8.0.0',
npm warn EBADENGINE   required: { node: '^22.11.0 || ^24.11.0 || >=26.0' },
npm warn EBADENGINE   current: { node: 'v24.10.0', npm: '11.6.1' }
npm warn EBADENGINE }
npm warn EBADENGINE Unsupported engine {
npm warn EBADENGINE   package: 'postcss-normalize-display-values@8.0.0',
npm warn EBADENGINE   required: { node: '^22.11.0 || ^24.11.0 || >=26.0' },
npm warn EBADENGINE   current: { node: 'v24.10.0', npm: '11.6.1' }
npm warn EBADENGINE }
npm warn EBADENGINE Unsupported engine {
npm warn EBADENGINE   package: 'postcss-normalize-positions@8.0.0',
npm warn EBADENGINE   required: { node: '^22.11.0 || ^24.11.0 || >=26.0' },
npm warn EBADENGINE   current: { node: 'v24.10.0', npm: '11.6.1' }
npm warn EBADENGINE }
npm warn EBADENGINE Unsupported engine {
npm warn EBADENGINE   package: 'postcss-normalize-repeat-style@8.0.0',
npm warn EBADENGINE   required: { node: '^22.11.0 || ^24.11.0 || >=26.0' },
npm warn EBADENGINE   current: { node: 'v24.10.0', npm: '11.6.1' }
npm warn EBADENGINE }
npm warn EBADENGINE Unsupported engine {
npm warn EBADENGINE   package: 'postcss-normalize-string@8.0.0',
npm warn EBADENGINE   required: { node: '^22.11.0 || ^24.11.0 || >=26.0' },
npm warn EBADENGINE   current: { node: 'v24.10.0', npm: '11.6.1' }
npm warn EBADENGINE }
npm warn EBADENGINE Unsupported engine {
npm warn EBADENGINE   package: 'postcss-normalize-timing-functions@8.0.0',
npm warn EBADENGINE   required: { node: '^22.11.0 || ^24.11.0 || >=26.0' },
npm warn EBADENGINE   current: { node: 'v24.10.0', npm: '11.6.1' }
npm warn EBADENGINE }
npm warn EBADENGINE Unsupported engine {
npm warn EBADENGINE   package: 'postcss-normalize-unicode@8.0.0',
npm warn EBADENGINE   required: { node: '^22.11.0 || ^24.11.0 || >=26.0' },
npm warn EBADENGINE   current: { node: 'v24.10.0', npm: '11.6.1' }
npm warn EBADENGINE }
npm warn EBADENGINE Unsupported engine {
npm warn EBADENGINE   package: 'postcss-normalize-url@8.0.0',
npm warn EBADENGINE   required: { node: '^22.11.0 || ^24.11.0 || >=26.0' },
npm warn EBADENGINE   current: { node: 'v24.10.0', npm: '11.6.1' }
npm warn EBADENGINE }
npm warn EBADENGINE Unsupported engine {
npm warn EBADENGINE   package: 'postcss-normalize-whitespace@8.0.0',
npm warn EBADENGINE   required: { node: '^22.11.0 || ^24.11.0 || >=26.0' },
npm warn EBADENGINE   current: { node: 'v24.10.0', npm: '11.6.1' }
npm warn EBADENGINE }
npm warn EBADENGINE Unsupported engine {
npm warn EBADENGINE   package: 'postcss-ordered-values@8.0.0',
npm warn EBADENGINE   required: { node: '^22.11.0 || ^24.11.0 || >=26.0' },
npm warn EBADENGINE   current: { node: 'v24.10.0', npm: '11.6.1' }
npm warn EBADENGINE }
npm warn EBADENGINE Unsupported engine {
npm warn EBADENGINE   package: 'postcss-reduce-initial@8.0.0',
npm warn EBADENGINE   required: { node: '^22.11.0 || ^24.11.0 || >=26.0' },
npm warn EBADENGINE   current: { node: 'v24.10.0', npm: '11.6.1' }
npm warn EBADENGINE }
npm warn EBADENGINE Unsupported engine {
npm warn EBADENGINE   package: 'postcss-reduce-transforms@8.0.0',
npm warn EBADENGINE   required: { node: '^22.11.0 || ^24.11.0 || >=26.0' },
npm warn EBADENGINE   current: { node: 'v24.10.0', npm: '11.6.1' }
npm warn EBADENGINE }
npm warn EBADENGINE Unsupported engine {
npm warn EBADENGINE   package: 'postcss-svgo@8.0.0',
npm warn EBADENGINE   required: { node: '^22.11.0 || ^24.11.0 || >=26.0' },
npm warn EBADENGINE   current: { node: 'v24.10.0', npm: '11.6.1' }
npm warn EBADENGINE }
npm warn EBADENGINE Unsupported engine {
npm warn EBADENGINE   package: 'postcss-unique-selectors@8.0.0',
npm warn EBADENGINE   required: { node: '^22.11.0 || ^24.11.0 || >=26.0' },
npm warn EBADENGINE   current: { node: 'v24.10.0', npm: '11.6.1' }
npm warn EBADENGINE }
npm warn EBADENGINE Unsupported engine {
npm warn EBADENGINE   package: 'stylehacks@8.0.0',
npm warn EBADENGINE   required: { node: '^22.11.0 || ^24.11.0 || >=26.0' },
npm warn EBADENGINE   current: { node: 'v24.10.0', npm: '11.6.1' }
npm warn EBADENGINE }

Robert Jaros

05/11/2026, 11:18 AM

And it's a bit strange because node 24 should be ok. Why do we have

v24.10.0

and not just

24.10.0

turansky

05/11/2026, 1:38 PM

It's what

node --version

returns 😉

turansky

05/11/2026, 1:39 PM

Even regular installation

Robert Jaros

05/11/2026, 1:40 PM

ok, but am I correct version

24.10.0

should be compatible with

^24.11.0

dependency?

Robert Jaros

05/11/2026, 1:40 PM

so why this warning?

turansky

05/11/2026, 1:45 PM

You need

24.11.0

or higher

turansky

05/11/2026, 1:45 PM

But you have

24.10.0

turansky

05/11/2026, 1:46 PM

24.15.0

- latest LTS

Robert Jaros

05/11/2026, 1:46 PM

But

prefix should match all major 24 versions

Robert Jaros

05/11/2026, 1:47 PM

or maybe I'm wrong about it ...

turansky

05/11/2026, 1:47 PM

^24.11.0

means

24.11.0

or higher minor

➕ 2

bashor

05/12/2026, 2:57 PM

cc @Ilya Goncharov [JB]

Ilya Goncharov [JB]

05/12/2026, 3:01 PM

Could you please submit an issue?

Robert Jaros

05/12/2026, 5:29 PM

https://youtrack.jetbrains.com/issue/KT-86271/WasmJs-Js-2.4.0-Beta2-Node-version-not-compatible-with-popular-JS-dependencies

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