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我要疯了，想弄清楚这一点。我有一个使用 Express 和 MongoDB（猫鼬）的 node.js 应用程序。它在本地运行得很好。我将它部署到 heroku 似乎没有问题，但是当我尝试实际启动应用程序时它崩溃了。heroku 日志是这样说的：

macbook-pro-4:FF_Courtney cmitchell$ heroku logs
2012-10-29T19:31:27+00:00 heroku[web.1]: State changed from crashed to starting
2012-10-29T19:31:30+00:00 heroku[web.1]: Starting process with command `node web.js`
2012-10-29T19:31:31+00:00 app[web.1]: 
2012-10-29T19:31:31+00:00 app[web.1]: module.js:340
2012-10-29T19:31:31+00:00 app[web.1]:     throw err;
2012-10-29T19:31:31+00:00 app[web.1]: Error: Cannot find module './http'
2012-10-29T19:31:31+00:00 app[web.1]:           ^
2012-10-29T19:31:31+00:00 app[web.1]:     at Function.Module._resolveFilename     (module.js:338:15)
2012-10-29T19:31:31+00:00 app[web.1]:     at Function.Module._load (module.js:280:25)
2012-10-29T19:31:31+00:00 app[web.1]:     at Module.require (module.js:362:17)
2012-10-29T19:31:31+00:00 app[web.1]:     at require (module.js:378:17)
2012-10-29T19:31:31+00:00 app[web.1]:     at Object.<anonymous>  (/app/node_modules/express/node_modules/connect/lib/connect.js:13:18)
2012-10-29T19:31:31+00:00 app[web.1]:     at Module._compile (module.js:449:26)
2012-10-29T19:31:31+00:00 app[web.1]:     at Object.Module._extensions..js (module.js:467:10)
2012-10-29T19:31:31+00:00 app[web.1]:     at Module.load (module.js:356:32)
2012-10-29T19:31:31+00:00 app[web.1]:     at Function.Module._load (module.js:312:12)
2012-10-29T19:31:31+00:00 app[web.1]:     at Module.require (module.js:362:17)
2012-10-29T19:31:32+00:00 heroku[web.1]: Process exited with status 1

我有一个包含我的依赖项的 package.json 文件：

{
  "name": "favorite-failure",
  "version": "0.0.1",
  "dependencies": {
    "express": "2.5.6",
    "ejs" : "latest",
    "mongoose" : "3.3.1",
    "request" : "2.11.4",
    "moment" : "1.7.2",
    "mongodb" : "0.9.6-7",
    "connect-mongodb": ">= 1.1.3"
  },
  "engines": {
      "node": ">= 0.8.12",
      "npm": ">= 1.1.49"
  }
}

我对此有点陌生，所以任何帮助将不胜感激。谢谢！

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