ReferenceError: require2 is not defined when building project with less using vite build() via tsx-cli #20600
Description
Describe the bug
When running the Vite build() API inside a script executed via tsx-cli, and the project contains .less files, the build process throws the following error:
ReferenceError: require2 is not defined
at eval (eval at FakeWorker (C:\Users\I2288773\Workspace\MyPledge\build-test\node_modules\.pnpm\rolldown-vite@7.1.1_@types+_483053de22fda570198728257ed16612\node_modules\rolldown-vite\dist\node\chunks\dep-BBmQs1ZR.js:49:835), <anonymous>:5:32)
at eval (eval at FakeWorker (C:\Users\I2288773\Workspace\MyPledge\build-test\node_modules\.pnpm\rolldown-vite@7.1.1_@types+_483053de22fda570198728257ed16612\node_modules\rolldown-vite\dist\node\chunks\dep-BBmQs1ZR.js:49:835), <anonymous>:5:1274)
Reproduction
https://stackblitz.com/edit/vitejs-vite-ir8ahelm?file=build.ts
Steps to reproduce
Use tsx-cli to execute a script that calls Vite's build() API programmatically.
Ensure the project includes .less files.
Run the build script via tsx (e.g., tsx build.ts).
Encounter the require2 is not defined error.
System Info
"tsx": "^4.20.3",
"less": "^4.4.0",
"vite": "^7.1.2"Used Package Manager
pnpm
Logs
No response
Validations
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- The provided reproduction is a minimal reproducible example of the bug.