Can't use local workspace library in vite.config.ts - TypeError [ERR_UNKNOWN_FILE_EXTENSION]: Unknown file extension ".ts"

[maximan3000]

Describe the bug

Related to #13332

When i tried to setup local library with yarn workspaces, i've found out that this library doesn't work inside configuration file vite.config.ts - everything is fine until you try to start dev server - it throws error

TypeError [ERR_UNKNOWN_FILE_EXTENSION]: Unknown file extension ".ts"

Thats is problem, because i need shared configuration logic between projects in monorepo.

Actually, you still can use relative import for this library. For example, if you have local workspace library @foo/tools

// vite.config.ts

// throws error after starting dev server
import { defaultConfig } from '@foo/tools';

// works fine
import { defaultConfig } from './tools';

Reproduction

https://stackblitz.com/edit/vitejs-vite-lpsoay?file=main.js

Steps to reproduce

Just open the reproduction link - it automatically throws reported error (or start the dev server by yarn dev manually)

System Info

System:
    OS: Linux 5.0 undefined
    CPU: (8) x64 Intel(R) Core(TM) i9-9880H CPU @ 2.30GHz
    Memory: 0 Bytes / 0 Bytes
    Shell: 1.0 - /bin/jsh
  Binaries:
    Node: 18.18.0 - /usr/local/bin/node
    Yarn: 1.22.19 - /usr/local/bin/yarn
    npm: 10.2.3 - /usr/local/bin/npm
    pnpm: 8.14.0 - /usr/local/bin/pnpm
  npmPackages:
    vite: ^5.1.4 => 5.1.4

Used Package Manager

yarn

Logs

Click to expand!

failed to load config from /home/projects/vitejs-vite-lpsoay/vite.config.ts
error when starting dev server:
TypeError [ERR_UNKNOWN_FILE_EXTENSION]: Unknown file extension ".ts" for /home/projects/vitejs-vite-lpsoay/tools/index.ts
    at __node_internal_ (https://vitejsvitelpsoay-wusl.w-credentialless.staticblitz.com/blitz.6f234770.js:36:5406)
    at new <anonymous> (https://vitejsvitelpsoay-wusl.w-credentialless.staticblitz.com/blitz.6f234770.js:36:4168)
    at file: (https://vitejsvitelpsoay-wusl.w-credentialless.staticblitz.com/blitz.6f234770.js:150:1250)
    at defaultGetFormat (https://vitejsvitelpsoay-wusl.w-credentialless.staticblitz.com/blitz.6f234770.js:150:1573)
    at defaultLoad (https://vitejsvitelpsoay-wusl.w-credentialless.staticblitz.com/blitz.6f234770.js:254:833)
    at nextLoad (https://vitejsvitelpsoay-wusl.w-credentialless.staticblitz.com/blitz.6f234770.js:248:2120)
    at ESMLoader.load (https://vitejsvitelpsoay-wusl.w-credentialless.staticblitz.com/blitz.6f234770.js:248:5485)
    at ESMLoader.<anonymous> (https://vitejsvitelpsoay-wusl.w-credentialless.staticblitz.com/blitz.6f234770.js:248:8230)
    at new ModuleJob (https://vitejsvitelpsoay-wusl.w-credentialless.staticblitz.com/blitz.6f234770.js:181:767)
    at ESMLoader._createModuleJob2 (https://vitejsvitelpsoay-wusl.w-credentialless.staticblitz.com/blitz.6f234770.js:248:8151)
    at ESMLoader.getModuleJob (https://vitejsvitelpsoay-wusl.w-credentialless.staticblitz.com/blitz.6f234770.js:248:4644)
    at async https://vitejsvitelpsoay-wusl.w-credentialless.staticblitz.com/blitz.6f234770.js:181:966
error Command failed with exit code 1.
info Visit https://yarnpkg.com/en/docs/cli/run for documentation about this command.

Validations

• Follow our Code of Conduct
• Read the Contributing Guidelines.
• Read the docs.
• Check that there isn't already an issue that reports the same bug to avoid creating a duplicate.
• Make sure this is a Vite issue and not a framework-specific issue. For example, if it's a Vue SFC related bug, it should likely be reported to vuejs/core instead.
• Check that this is a concrete bug. For Q&A open a GitHub Discussion or join our Discord Chat Server.
• The provided reproduction is a minimal reproducible example of the bug.

[stackblitz]

Start a new pull request in StackBlitz Codeflow.

• vitejs-vite-lpsoay (Open reproduction)

[sapphi-red]

Duplicate of #5370