Software⏱️ 2 min read📅 2026-05-29

How to Fix: Building Angular app with 'npm run build' gives Node.js version err

Quick Answer: Try running "npm run build" with the --legacy-peer-deps flag to bypass compatibility issues.

📋 Table of Contents

  1. ⚠️ Common Causes
  2. ✅ Best Solutions to Fix It
  3. ✨ Wrapping Up

When building an Angular app, using npm run build often results in Node.js version errors. This issue can be particularly puzzling when the error message indicates a specific Node version that is not installed on your system or does not match the current NVM version.

⚠️ Common Causes

  • The discrepancy in Node versions might be due to the global installation of Node.js, which can lead to conflicts with local project dependencies.

✅ Best Solutions to Fix It

Method 1: Verify Global Node.js Version

  1. Step 1: Open a terminal or command prompt and type node -v to check the global Node.js version.

Method 2: Update NPM or Node.js Version

  1. Step 1: Run nvm install node@, replacing version with the desired version, or update NPM by running npm install npm@latest -g.

✨ Wrapping Up

By following these steps and verifying the global Node.js version, you should be able to resolve the Node.js version error when building your Angular app with npm run build. Remember to always check for updates and ensure compatibility between Node.js versions.

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