Persistent ERR_PNPM_FETCH_404 on Vercel: https: Not Found

v0
1

I’m running into a recurring deployment failure on Vercel with both pnpm and npm:

ERR_PNPM_FETCH_404  GET https://registry.npmjs.org/https%3A  Not Found

This error indicates that a malformed URL (https:) is being treated as an npm package name. I’ve already:

  • Cleaned and restored my package.json multiple times
  • Removed any stray dependencies pointing to URLs
  • Tried both pnpm install and npm install locally without issues

Everything builds fine on my local machine. The problem only appears in the V0/Vercel build environment. It feels like the build infrastructure is generating or injecting that invalid "https:" entry at install time, since my GitHub repo’s package.json does not contain it.

Has anyone experienced a similar issue, or can point me to how Vercel/V0 might be dynamically altering package.json during the install step? Any ideas on how to force the build to use the correct file would be greatly appreciated.

4

We don’t seem to be doing any manipulation here so unfortunately no extra clues there – a malformed dependency for the https package would be the best explanation

Make sure you regenerate your lockfile (if you haven’t done that already)

Can you share your package.json deps so I can check to see if there’s anything suspicious there?

5

I am having the same issue.

Have you found a solution?

6

me too, same issue.

EDIT: confirmed npm incident
npm Status - Issues with package install, package publish, and login.

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