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Installing Dependencies

Issue: npm command not found

If you're getting npm: command not found, Node.js and npm are not installed or not in your PATH.

Solution: Install Node.js (includes npm)

Option 1: Download from Official Website (Recommended)

  1. Go to: https://nodejs.org/
  2. Download: LTS version (v20.x or v18.x recommended)
  3. Install: Run the installer
  4. Verify: Open a new terminal and run: 
    node --version
npm --version

Option 2: Using Chocolatey (Windows)

If you have Chocolatey installed:

choco install nodejs

Option 3: Using Winget (Windows 10/11)

winget install OpenJS.NodeJS.LTS

After Installing Node.js

Step 1: Close and Reopen Terminal

Close your current terminal and open a new one so PATH updates take effect.

Step 2: Verify Installation

node --version
npm --version

You should see version numbers like:

v20.11.0
10.2.4

Step 3: Install Project Dependencies

Navigate to your project directory:

cd C:\Users\sanas\OneDrive\Desktop\FlaredUpHack

Then install dependencies:

npm install

This will:

  • Read package.json
  • Install all dependencies
  • Create node_modules/ folder
  • Create package-lock.json

Step 4: Verify Installation

Check if Hardhat is installed:

npm list hardhat
npm list @nomicfoundation/hardhat-toolbox

Expected Output

When npm install runs successfully, you'll see:

added 1234 packages, and audited 1235 packages in 2m

Troubleshooting

If npm still not found after installing Node.js:

  1. Restart your computer - Sometimes PATH updates need a full restart

  2. Check PATH manually:

    $env:PATH

    Should include: C:\Program Files\nodejs\

  3. Add to PATH manually (if needed):

    • Open System Properties → Environment Variables
    • Add C:\Program Files\nodejs\ to PATH
    • Restart terminal

If installation fails:

  1. Clear npm cache:

    npm cache clean --force

  2. Delete node_modules and reinstall:

    Remove-Item -Recurse -Force node_modules -ErrorAction SilentlyContinue
Remove-Item -Force package-lock.json -ErrorAction SilentlyContinue
npm install

Quick Checklist

  • Node.js installed (v18+)
  • Terminal restarted after Node.js installation
  • node --version works
  • npm --version works
  • In project directory: C:\Users\sanas\OneDrive\Desktop\FlaredUpHack
  • Run npm install
  • Dependencies installed successfully

Next Steps After Installation

Once dependencies are installed:

  1. Compile contracts:

    npm run compile

  2. Run tests:

    npm run test:smartaccount

Install Node.js first, then run npm install in your project directory!