How to fix npm ERR! code ELIFECYCLE npm ERR! errno 1 npm ERR! package@version prepare: `npm run build` in npm

# Look for errors like:
error TS2307: Cannot find module...
ERROR in ./src/index.js
SyntaxError: Unexpected token...

# The prepare script runs 'npm run build', so the error
# is from your build tool (TypeScript, webpack, etc.)

# Clear npm cache
npm cache clean --force

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

# Reinstall
npm install

# Clean install from lock file
npm ci

# Disable Husky in CI
HUSKY=0 npm ci

# Or in GitHub Actions:
env:
  HUSKY: 0

# Check for .nvmrc or engines in package.json
cat .nvmrc
cat package.json | grep -A 3 '"engines"'

# Switch versions with nvm
nvm use

# Or install required version
nvm install 18

# Allow scripts to run as root
npm install --unsafe-perm

# Or set globally
npm config set unsafe-perm true

# Install without running scripts
npm install --ignore-scripts

# Then manually run build to see errors
npm run build