Error: Wrangler requires at least Node.js v20.0.0. You are using v18.15.0. Please update your version of Node.js.

To resolve the Node.js version error for Wrangler, follow these steps to update your Node.js version using a version manager (recommended) or a direct installation:

Option 1: Using a Version Manager (Best Practice)

Version managers allow seamless switching between Node.js versions.

For macOS/Linux (using nvm):

1. Install nvm (if not installed):

   curl -o- https://raw.githubusercontent.com/nvm-sh/nvm/v0.39.7/install.sh | bash

   Restart your terminal after installation.

2. Install Node.js v20+:

   nvm install 20  # Installs the latest Node.js v20

3. Set v20 as default:

   nvm alias default 20

4. Verify version:

   node -v  # Should output v20.x.x

For Windows (using nvm-windows):

1. Download nvm-windows:
   Get the installer from nvm-windows releases.

2. Install Node.js v20+:
   Open PowerShell/CMD as Admin:

   nvm install 20  # Installs latest Node.js v20
   nvm use 20      # Switch to v20

3. Set as default (optional):

   nvm alias default 20

Option 2: Direct Installation (Without Version Manager)

1. Download Node.js v20+:

   • Official Node.js Download Page (select v20+ LTS).

2. Run the installer:
   Follow platform-specific steps to replace your existing Node.js version.

3. Verify installation:

   node -v  # Should show v20.x.x

Final Checks

• Confirm Node.js version:

  node -v  # Must be ≥ v20.0.0

• Re-run Wrangler:

  npx wrangler deploy  # Or your Wrangler command

Why use a version manager?
Tools like nvm or volta simplify managing multiple Node.js versions for different projects. Avoids conflicts and allows downgrading if needed.