Software⏱️ 2 min read📅 2026-05-31

How to Fix: Start script missing error when running npm start

Missing script error when running npm start

Quick Answer: The error indicates that the 'start' script is missing from your package.json file. Add a new script with the command you want to run instead of 'start'. For example, "start: node app.js".

📋 Table of Contents

  1. 🔍 Why This Happens
  2. 🚀 How to Resolve This Issue
  3. 🎯 Final Words

The "Start script missing" error occurs when the npm start command fails to find a valid start script in your package.json file. This issue can be resolved by adding a start script to your package.json file.

🔍 Why This Happens

  • [Cause]

🚀 How to Resolve This Issue

Method 1: Update Package.json File

  1. Step 1: Open your package.json file in a text editor and navigate to the scripts section.

Method 2: Add Start Script

  1. Step 1: Add a new key called "start" to the scripts section in your package.json file, and assign it a command that starts your application.

🎯 Final Words

To resolve the "Start script missing" error, update your package.json file to include a start script, or add one if it doesn't exist. By following these steps, you should be able to run your application using the npm start command.

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