[Bug?]: Unknown error on link step

Author: vis97cCreated Dec 28, 2023Updated Aug 18, 2026

Labelsbug

Self-service

I'd be willing to implement a fix

Describe the bug

I'm migrating a project from yarn classic. When installing I get an unknown error. It could be related to file permissions but I'm not sure.

bash

$ yarn
➤ YN0000: · Yarn 4.0.2
➤ YN0000: ┌ Resolution step
➤ YN0000: └ Completed in 0s 277ms
➤ YN0000: ┌ Fetch step
➤ YN0000: └ Completed in 0s 825ms
➤ YN0000: ┌ Link step
➤ YN0001: │ Error: UNKNOWN: unknown error, link 'C:\Users\vis97\AppData\Local\Yarn\Berry\index\a1\a1e9c52af8059502374c7d5be53fee0ba63343a8.dat' -> 'C:\projects\\\xamu\store\node_modules\.store\@firebase-auth-virtual-b1241dd24a\package\dist\cordova\src\core\credentials\oauth.test.d.ts'
➤ YN0000: └ Completed in 13s 394ms
➤ YN0000: · Failed with errors in 14s 586ms
node:internal/process/promises:288
            triggerUncaughtException(err, true /* fromPromise */);
            ^

[Error: UNKNOWN: unknown error, link 'C:\Users\vis97\AppData\Local\Yarn\Berry\index\a1\a1e9c52af8059502374c7d5be53fee0ba63343a8.dat' -> 'C:\projects\\\xamu\store\node_modules\.store\@firebase-auth-virtual-b1241dd24a\package\dist\cordova\src\core\credentials\oauth.test.d.ts'] {
  errno: -4094,
  code: 'UNKNOWN',
  syscall: 'link',
  path: 'C:\\Users\\vis97\\AppData\\Local\\Yarn\\Berry\\index\\a1\\a1e9c52af8059502374c7d5be53fee0ba63343a8.dat',
  dest: 'C:\\projects\\\\xamu\\store\\node_modules\\.store\\@firebase-auth-virtual-b1241dd24a\\package\\dist\\cordova\\src\\core\\credentials\\oauth.test.d.ts'
}

Node.js v18.19.0

Thanks in advance!

To reproduce

jsonc

// package.json
{
  "private": true,
  "packageManager": "[email protected]",
  "engines": {
    "node": ">=18"
  },
  "dependencies": {
    "firebase": "^10.7.1"
  }
}

yaml

# yarnrc.yml
nodeLinker: pnpm

Environment

bash

System:
    OS: Windows 11 10.0.22631
    CPU: (8) x64 AMD Ryzen 7 4700U with Radeon Graphics
Binaries:
    Node: 18.19.0 - ~\AppData\Local\Temp\\\xfs-9666f8ad\node.CMD
    Yarn: 4.0.2 - ~\AppData\Local\Temp\\\xfs-9666f8ad\yarn.CMD
    npm: 10.2.3 - C:\Program Files\nodejs\npm.CMD

Additional context

Already tried installing after removing firebase but the issue just passes to other packages

Source: yarnpkg/berry

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