Build fails because of missing type definitions

[MantasSutkevicius]

Describe the bug

Whenever I add a test to the project and try to run npm run build, I get type definition errors. Errors are related to @types/node and @types/ws. I know I could just install these within my own devDependencies, but I think this should not be the case?

Reproduction

This is a fresh install of Vite+Vitest. The only change by me here is adding a test. Try running npm run build here:
https://stackblitz.com/edit/vitejs-vite-kmvhms

System Info

-

Used Package Manager

npm

Validations

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[sheremet-va]

Not sure about "@types/ws", but "@types/node" is required

You can also try passing "--skipLibCheck" to tsc command

[MantasSutkevicius]

I know that skipLibCheck solves the issue, but I would rather keep the rule as true. I think I'll just install these deps on my own.

[david-crespo]

I'm also running into this when adding Vitest to a project. Had to add @types/ws and @types/babel__core. Will update if I find an alternative. It's a bit weird.

[sheremet-va]

Can confirm the bug: https://github.com/sheremet-va/vitest-types-bug

Note, we also require esModuleInterop: true in tsconfig at the moment (because of chai)