package.json

{
  "name": "chat-app",
  "version": "1.0.0",
  "description": "",
  "main": "app.js", // Changed main from index.js to app.js
  "scripts": {
    "test": "echo \"Error: no test specified\" && exit 1",
    "start": "node app.js"   // <--- ADD THIS LINE
  },
  "keywords": [],
  "author": "",
  "license": "ISC",
  "dependencies": {
    "express": "^5.1.0",    // Note: Your screenshot might have 4.x, adjust if needed
    "socket.io": "^4.8.1"   // Note: Your screenshot might have 4.x, adjust if needed
  }
}