Vite build fails with `sass-embedded` when running via tsx

[serkodev]

Acknowledgements

• I read the documentation and searched existing issues to avoid duplicates
• I understand this is a bug tracker and anything other than a proven bug will be closed
• I understand this is a free project and relies on community contributions
• I read and understood the Contribution guide

Minimal reproduction URL

https://github.com/serkodev/tsx-issue-735

Problem & expected behavior (under 200 words)

When running a Nuxt build using TSX

import { runMain } from '@nuxt/cli'
runMain()

The process fails with a sass-embedded error:

Nuxt Build Error: [vite:css] [sass] Cannot read properties of undefined (reading 'initAsyncCompiler')

From Reproduction Repo

Clone the repo and run:

pnpm i

# run with error
pnpm run build:tsx

The build works with no error when running the same .ts file via Bun or ts-node.

pnpm run build:bun
pnpm run build:ts-node

---

From Scratch

Show all steps

1. Create an empty Nuxt project by npm create nuxt@latest.

2. Install dependencies:

   pnpm i -D @nuxt/cli sass-embedded

3. Add a SCSS style in app.vue:

   <style lang="scss">
   body {
     color: red;
   }
   </style>

4. Create nuxt.ts with:

   import { runMain } from '@nuxt/cli'
   runMain()

5. Run:

   tsx ./nuxt.ts build

   The error message will appear.

Bugs are expected to be fixed by those affected by it

• I'm interested in working on this issue

[FelixNumworks]

Hi

Since Cypress version 15.0.0, they've switched to using TSX under the hood, and we are having difficulty using Vite as file preprocessor ever since (if we have sass or sass-embedded in our packages).

Is there any plan on fixing this soon ?

See

• fix(css): workaround tsx esModule interop of sass-embedded import vitejs/vite#19182 (comment)
• Cypress 15 component testing fails with sass error cypress-io/cypress#32362

[IlCallo]

I confirm the issue

I'm one of Quasar framework maintainers, this is a blocker for supporting Cypress 15 in our Cypress integration package

Related: quasarframework/quasar-testing#403