v4: Vite build fails on Cloudflare

[MickL]

What version of Tailwind CSS are you using?

4.0.0-beta.7

What build tool (or framework if it abstracts the build tool) are you using?

tailwindcss: 4.0.0-beta.7
vite: 6.0.3

What version of Node.js are you using?

Node: 22.11.0
Bun: 1.1.38

Reproduction URL

https://github.com/MickL/tailwind-vite

Describe your issue

Build works fine on my system (macOS) but when deploying to Cloudflare Pages I get the following error:

23:07:02.897 | Executing user command: bun run build
23:07:03.104 | $ vite build
23:07:03.768 | vite v6.0.3 building for production...
23:07:03.829 | transforming...
23:07:03.834 | ✓ 1 modules transformed.
23:07:03.840 | x Build failed in 40ms
23:07:03.840 | error during build:
23:07:03.840 | [@tailwindcss/vite:generate:build] Object not disposable
23:07:03.841 | file: /opt/buildhome/repo/index.css
23:07:03.841 | at q (file:///opt/buildhome/repo/node_modules/@tailwindcss/vite/dist/index.mjs:1:66)
23:07:03.841 | at P (file:///opt/buildhome/repo/node_modules/@tailwindcss/vite/dist/index.mjs:1:270)
23:07:03.841 | at Object.transform (file:///opt/buildhome/repo/node_modules/@tailwindcss/vite/dist/index.mjs:1:3715)
23:07:03.841 | at Object.handler (file:///opt/buildhome/repo/node_modules/vite/dist/node/chunks/dep-yUJfKD1i.js:50845:15)
23:07:03.841 | at file:///opt/buildhome/repo/node_modules/rollup/dist/es/shared/node-entry.js:20812:40
23:07:03.847 | error: script "build" exited with code 1
23:07:03.850 | Failed: Error while executing user command. Exited with error code: 1
23:07:03.858 | Failed: build command exited with code: 1
23:07:04.505 | Failed: error occurred while running build command

• I tried both in a Nuxt project as well as in a fresh clean Vite project
• I tried with both Bun and npm, same error
• Reproduction: https://github.com/MickL/tailwind-vite

[rgripper]

This is because a call to dispose with using keyword fails on Node v20. But it starts working on Node v22

[MickL]

Cloudflare is using Node 18 for its build process.

I can confirm that it is working with Node 22. As a workaround one can add an environment variable NODE_VERSION or a file .nvmrc with the content 22.12.0 to specify Node version for the build process as described here

[RobinMalfait]

Hey!

This should be fixed by #15404, and will be available in the next beta release. As a temporary workaround, if you can bump Node.js to at least 18.20.x it should work again.