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Vercel CLI not working? Run vercel doctor: it shows the command that fixes it

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Source checked 7 Nov 2026 · Published 8 Nov 2026 · Last reviewed 8 Nov 2026 · By Ctrl+Z Therapy (how we test)

The short answer

Since November 3, 2026, Vercel CLI includes vercel doctor, which checks your setup and shows the command that fixes each problem it finds. It checks the CLI version and install, your login and current team, the project link, and your project configuration in vercel.json, and reports active incidents from the Vercel status page. Each check reports OK, Warning, Failed, or Skipped.

What to do

  1. Update to the latest Vercel CLI version.
  2. Run vercel doctor and follow the command it suggests for each failed check.
  3. For an AI coding agent, use vercel doctor --json to get each check's status and suggested commands as structured output.

Good to know

  • Doctor runs without a login or a linked project, and it never prompts, logs in, or links a project, so coding agents can run it before guessing at a fix.
  • When vercel upgrade can't update the installed CLI, the install check shows where the CLI runs from and how to reinstall it.

Source

Checked on 7 Nov 2026. Prices, limits and settings change, so check the source before you rely on them.

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