How to fix npm ERR! code ELIFECYCLE npm ERR! errno 137 in npm

# Check system logs
sudo dmesg | grep -i "killed process"

# Or journalctl
journalctl -k | grep -i oom

export NODE_OPTIONS="--max-old-space-size=4096"
npm run build

"build": "node --max-old-space-size=4096 node_modules/.bin/webpack"

# Docker Compose
services:
  build:
    deploy:
      resources:
        limits:
          memory: 4G

# GitHub Actions
jobs:
  build:
    runs-on: ubuntu-latest
    # Consider larger runner

# Jest
jest --maxWorkers=2

# Webpack
parallel: false

# npm
npm config set maxsockets 3

// webpack.config.js
module.exports = {
  optimization: {
    minimize: false // for debugging
  },
  // Use incremental builds
  cache: {
    type: "filesystem"
  }
};

{
  "scripts": {
    "build:js": "webpack --config webpack.js.js",
    "build:css": "webpack --config webpack.css.js",
    "build": "npm run build:js && npm run build:css"
  }
}