How to fix Cannot resolve typescript module for ts-node in TypeScript

# Check package.json
cat package.json | grep typescript

# Or check node_modules
ls node_modules | grep typescript

# Or use npm
npm list typescript

# Install the latest stable version
npm install --save-dev typescript

# Or install a specific version compatible with your ts-node
npm install --save-dev [email protected]

# If using yarn
yarn add --dev typescript

# If using pnpm
pnpm add --save-dev typescript

# Check installed versions
npx ts-node --version
npx tsc --version

# Or check package.json
cat package.json | grep -A2 -B2 'ts-node|typescript'

# Update both to latest compatible versions
npm install --save-dev ts-node@latest typescript@latest

# Clear npm cache
npm cache clean --force

# Remove node_modules and package-lock.json
rm -rf node_modules package-lock.json

# Reinstall all dependencies
npm install

# Alternative: Use npm ci for clean install
npm ci

# Use npx (recommended)
npx ts-node your-file.ts

# Or explicitly use local binary
./node_modules/.bin/ts-node your-file.ts

# Add to package.json scripts
{
  "scripts": {
    "start": "ts-node src/index.ts"
  }
}

// tsconfig.json
{
  "compilerOptions": {
    "module": "commonjs",
    "moduleResolution": "node",
    "esModuleInterop": true
  }
}

# Specify TypeScript compiler
npx ts-node --compiler typescript your-file.ts

# Or use ts-node programmatically
require('ts-node').register({
  compiler: 'typescript',
  transpileOnly: true
});