Illegal operation on a directory, open

[dmiric]

I'm trying to install Medusa v2 on Windows 10.

I get this error when i run npm run build:

npm run build

> medusa-starter-default@0.0.1 build
> cross-env npm run clean && npm run build:server && npm run build:admin


> medusa-starter-default@0.0.1 clean
> cross-env ./node_modules/.bin/rimraf dist


> medusa-starter-default@0.0.1 build:server
> node ./build.mjs

node:internal/fs/promises:633
  return new FileHandle(await PromisePrototypeThen(
                        ^

Error: EISDIR: illegal operation on a directory, open 'D:\medusa\medusa2\dist\migrations\1690996567455-CorrectOnboardingFields.js'
    at async open (node:internal/fs/promises:633:25)
    at async Object.writeFile (node:internal/fs/promises:1212:14)
    at async writeToOut (file:///D:/medusa/medusa2/build.mjs:61:3)
    at async medusaTransform (file:///D:/medusa/medusa2/build.mjs:94:5)
    at async Promise.all (index 25)
    at async file:///D:/medusa/medusa2/build.mjs:106:1 {
  errno: -4068,
  code: 'EISDIR',
  syscall: 'open',
  path: 'D:\\medusa\\medusa2\\dist\\migrations\\1690996567455-CorrectOnboardingFields.js'
}

Node.js v21.6.1

[ByronKweh]

Can you try sudo when running npm run build?

[dmiric]

According to this stack that error happens when npm tries to use a file as a directory.

https://stackoverflow.com/questions/34959038/npm-stuck-giving-the-same-error-eisdir-illegal-operation-on-a-directory-read-a

Also this breaks last step of installation with npx create app

[dmiric]

I did a bit more research and I found that this code is creating directories with file names. So once it attempts to write a file of same name it gets directory instead of file.

https://github.com/medusajs/medusa-starter-default/blob/feat/v2/build.mjs#L60

[dmiric]

This is how I fixed it to work on windows I didn't test it on Linux but it should work:

  let dirNameRegex = new RegExp("\\" + path.sep + "([^\\" + path.sep + "]+)$");
  await fs.mkdir(outputPath.replace(dirNameRegex, ""), { recursive: true });
  await fs.writeFile(outputPath, content);

Pull request:
Feat/v2 Fix npm build command to work on all OSes.

[shahednasser]

Closing this issue as it's fixed by @dmiric 's PR