{
  "name": "gcs",
  "description": "Groonga CloudSearch",
  "version": "0.0.0",
  "author": "Yoji Shidara <dara@shidara.net>",
  "keywords": ["groonga", "fulltext", "search", "database"],
  "homepage": "http://github.com/groonga/gcs",
  "repository": {
    "type": "git",
    "url": "git://github.com/groonga/gcs.git"
  },
  "bugs": {
    "url": "http://github.com/groonga/gcs/issues"
  },
  "devDependencies": {
    "mocha": "",
    "chai": ""
  },
  "dependencies": {
    "commander": "",
    "nroonga": "git://github.com/nroonga/nroonga.git#master",
    "express": "",
    "jsdeferred": "",
    "mkdirp": ""
  },
  "scripts": {
    "test": "./node_modules/.bin/mocha --reporter list --ui tdd",
    "start": "./bin/gcs"
  },
  "bin": {
    "gcs": "./bin/gcs"
  },
  "main": "./lib/croonga",
  "engines": {
    "node": "~ 0.6.18"
  }
}

{
  "name": "gcs",
  "description": "Groonga CloudSearch",
  "version": "0.0.0",
  "author": "Yoji Shidara <dara@shidara.net>",
  "keywords": ["groonga", "fulltext", "search", "database"],
  "homepage": "http://github.com/groonga/gcs",
  "repository": {
    "type": "git",
    "url": "git://github.com/groonga/gcs.git"
  },
  "bugs": {
    "url": "http://github.com/groonga/gcs/issues"
  },
  "devDependencies": {
    "mocha": "",
    "chai": ""
  },
  "dependencies": {
    "commander": "",
    "nroonga": "git://github.com/nroonga/nroonga.git#master",
    "express": "",
    "jsdeferred": "",
    "mkdirp": ""
  },
  "scripts": {
    "test": "./node_modules/.bin/mocha --reporter list --ui tdd",
    "start": "./bin/gcs"
  },
  "bin": {
    "gcs": "./bin/gcs"
  },
  "main": "./lib/server",
  "engines": {
    "node": "~ 0.6.18"
  }
}

Change main to point server.js
Change main to point server.js
