title: First Heroku deploy failed `error code=H10`
body: <p>I deployed my app to Heroku. It's a node.js + express + socket.io app and this is the <code>package.json</code> file</p>
  
  <pre><code>{
    "name": "game_test",
    "author": "Ilya",
    "description": "A test app for our board game",
    "version": "0.0.1",
    "private": true,
    "scripts": {
      "start": "node app"
    },
    "dependencies": {
      "express": "3.0.6",
      "jade": "*",
      "socket.io" : "*"
    },
   "engines": {
        "node": "0.8.14"
    }
  }
  </code></pre>
  
  <p>This is the log I get:</p>
  
  <pre><code>heroku[router]: at=error code=H10 desc="App crashed" method=GET path=/ host=game-test-1.herokuapp.com fwd=37.26.146.185 dyno= queue= wait= connect= service= status=503 bytes=
  heroku[router]: at=error code=H10 desc="App crashed" method=GET path=/favicon.ico host=game-test-1.herokuapp.com fwd=37.26.146.185 dyno= queue= wait= connect= service= status=503 bytes=
  </code></pre>
  
  <p>What does it mean?</p>