vercel deployment fails with error ERR_PNPM_EEXIST EEXIST: file already exists

[seyaobey-dev]

Summary

My vercel project is linked to my github project. The creation of a PR triggers a preview deployment. But now all deployments have started failing with below error. After the failure, if I manually restart the build (by ignoring the cache), the build and the deployment complete successfully. Below is the error thrown:

ERR_PNPM_EEXIST  EEXIST: file already exists, rename '/vercel/path0/node_modules/@parcel/watcher-wasm/node_modules' -> '/vercel/path0/node_modules/@parcel/watcher-wasm_tmp_142/node_modules'

This error occurs when vercel attempts to install dependencies with pnpm install. I have tried to disable the cache, to purge the cache.

pnpm: 9.0.4,
node: 20.11.0

Example

No response

Steps to Reproduce

The failing build is triggered by the creation of a new PR in github

[ryantbrown]

I have the same exact issue:

ERR_PNPM_EEXIST  EEXIST: file already exists, rename '/vercel/path0/node_modules/@parcel/watcher-wasm/node_modules' -> '/vercel/path0/node_modules/@parcel/watcher-wasm_tmp_135/node_modules'
--
21:35:56.177 | Error: Command "pnpm install" exited with 1

[ryantbrown]

The problem was the pnpm version, Vercel supports 6, 7 and 8 while I was using 9. Creating a pnpm-lock.yaml file using version 8 locally resolved the issue.

[ryangriffinau]

Ok, I also had the exact same error but node and pnpm packages were aligned.

ERR_PNPM_EEXIST  EEXIST: file already exists, rename '/vercel/path0/node_modules/@parcel/watcher-wasm/node_modules' -> '/vercel/path0/node_modules/@parcel/watcher-wasm_tmp_142/node_modules'

What was not aligned were the dev and production env vars! Newly created env vars in dev weren't created in production and due to build cache in Vercel, it wasn't noticed until forcing a rebuild and receiving a server error.

My bad!

[kiikoh]

This error is still occuring

[github-actions[bot]]

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