Vercel CLI path doubling error during prebuilt deployment in Turborepo monorepo

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, ,
1

Hey,

I’ve been facing an issue recently during deployment where the vercel cli doubles the root directory which leads to the deployment failing because there’s no path as apps/web/apps/web.

Problem

To describe my flow, my Vercel Project settings are set as follows:

  • Root Directory: apps/web
  • Build command: cd ../.. && turbo build

Configuration

Then, here’s my root workspace package.json with the following scripts:

{
  "scripts": {
    "vercel:link": "vercel link --yes --repo",
    "vercel:envs": "turbo run vercel:envs",
    "vercel:build": "turbo run vercel:build",
    "vercel:deploy": "turbo run vercel:deploy"
  }
}

This runs the scripts in the apps/web/package.json which are describe as follows:

{
  "scripts": {
    "vercel:link": "vercel link --yes --repo",
    "vercel:envs": "vercel pull --yes --environment=preview",
    "vercel:build": "vercel build",
    "vercel:deploy": "vercel deploy --prebuilt"
  }
}

The build is created in apps/web/.vercel/output, which is great, but when the vercel:deploy script runs, it appends the root directory again and so the Vercel CLI looks for the output in apps/web/apps/web which obviously doesn’t exist.

I’ve tried using the exact flow locally and it works without any issues, so why is the behavior different on CI/CD? I’ve made sure the versions are the same, and everything else I could possibly think of.

I also tried moving the vercel commands to run from the workspace root, but in that case, the build wouldn’t start unless I provided the --cwd apps/web flag which means I’m back to square one.

Error Output

Here’s an error message of the path doubling:

web:vercel:deploy

cache bypass, force executing 21e867016fb51699

> web@0.1.0 vercel:deploy /home/runner/work/X/X/apps/web

> vercel deploy --prebuilt --token=$VERCEL_TOKEN

Vercel CLI 50.14.0

Retrieving project…

Error: The provided path “~/work/X/X/apps/web/apps/web” does not exist. To change your Project Settings, go to https://vercel.com/X/X/settings

 ELIFECYCLE  Command failed with exit code 1.

Any help in this regard would be really appreciated. If there’s any additional info needed, please do let me know.

5

Hi,

Slight bump. Would really appreciate if someone could shed some light on this.