Missing script 📦 npm

npm ERR! Missing script: "start"

The script name you ran isn’t defined in package.json "scripts".

Seen on: npm

Meaning

Typos (npm run dev vs serve), running in the wrong folder, or projects that use a different command.

Common causes

  • Script not defined
  • Wrong directory
  • Typo in the script name

⚡ Quick fix

  1. List scripts: npm run
  2. Add the script to package.json
  3. cd into the right project

Detailed fix by platform

npm

  1. npm run # lists available scripts

How to diagnose

  1. Scripts — Which ones exist?
  2. Recent change — Did it start after a deploy, upgrade, or configuration change? Compare with the last working version.

🧠 Still stuck? Analyze your error

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