Heroku的应用程序不断崩溃根据日志…为什么?

只要我部署了应用程序,并推出了本教程中的代码: http : //blog.superpat.com/2011/06/14/node-js-chat-demo-on-heroku/

我收到了这个来自heroku的错误:“应用程序发生错误,您的页面无法投放,请稍后重试。

如果您是应用程序所有者,请查看日志以获取详细信息。“

这是我得到的日志错误:

2013-05-07T12:46:21.537628+00:00 app[web.1]: module.js:340 2013-05-07T12:46:21.537946+00:00 app[web.1]: throw err; 2013-05-07T12:46:21.538118+00:00 app[web.1]: ^ 2013-05-07T12:46:21.540143+00:00 app[web.1]: Error: Cannot find module 'pg' 2013-05-07T12:46:21.540143+00:00 app[web.1]: at Function.Module._resolveFilename (module.js:338:15) 2013-05-07T12:46:21.540143+00:00 app[web.1]: at Function.Module._load (module.js:280:25) 2013-05-07T12:46:21.540143+00:00 app[web.1]: at require (module.js:380:17) 2013-05-07T12:46:21.540143+00:00 app[web.1]: at Object.<anonymous> (/app/server.js:22:10) 2013-05-07T12:46:21.540143+00:00 app[web.1]: at Module._compile (module.js:456:26) 2013-05-07T12:46:21.540143+00:00 app[web.1]: at Object.Module._extensions..js (module.js:474:10) 2013-05-07T12:46:21.540143+00:00 app[web.1]: at Module.load (module.js:356:32) 2013-05-07T12:46:21.540143+00:00 app[web.1]: at Module.require (module.js:364:17) 2013-05-07T12:46:21.540462+00:00 app[web.1]: at Function.Module.runMain (module.js:497:10) 2013-05-07T12:46:21.540143+00:00 app[web.1]: at Function.Module._load (module.js:312:12) 2013-05-07T12:46:22.755998+00:00 heroku[web.1]: Process exited with status 8 2013-05-07T12:47:21.212523+00:00 heroku[router]: at=error code=H10 desc="App crashed" method=GET path=/ host=nodechatclient.herokuapp.com fwd="72.229.150.213" dyno= connect= service= status=503 bytes= 2013-05-07T12:47:22.593111+00:00 heroku[router]: at=error code=H10 desc="App crashed" method=GET path=/favicon.ico host=nodechatclient.herokuapp.com fwd="72.229.150.213" dyno= connect= service= status=503 bytes= 

我遵循了教程的github中的所有代码。

什么可能导致它? 这与pg有关吗? 我是否应该在某处更改数据库path?

当我尝试使用节点server.js在本地运行时,但是我得到这个错误:

 Error: Cannot find module '/home/euridice/node_modules/pg/lib/native/../../build/default/binding' at Function.Module._resolveFilename (module.js:338:15) at Function.Module._load (module.js:280:25) at Module.require (module.js:364:17) at require (module.js:380:17) at Object.<anonymous> (/home/euridice/node_modules/pg/lib/native/index.js:16:13) at Module._compile (module.js:456:26) at Object.Module._extensions..js (module.js:474:10) at Module.load (module.js:356:32) at Function.Module._load (module.js:312:12) at Module.require (module.js:364:17) 

那是什么意思?

编辑:修正了一些事情,现在我得到:

 events.js:72 throw er; // Unhandled 'error' event ^ Error: FATAL: password authentication failed for user "postgres" FATAL: password authentication failed for user "postgres" at Connection.<anonymous> (/home/euridice/node_chat/node_modules/pg/lib/native/index.js:187:17) at Connection.EventEmitter.emit (events.js:95:17) 

 npm install 

在本地,并且还推送“node_modules”文件夹到heroku

编辑:我想你误解了一些git和herkoku的概念。 你需要:

 1. clone the repository: 'git clone git://github.com/metadaddy-sfdc/node_chat.git' 2. go into the repository: 'cd node_chat' 3. now you can run 'npm install' in THAT folder 4. after that you can create your heroku app: 'heroku create' 5. and deploy that to heroku: 5.1 git add . 5.2 git commit -m "some comment" 5.3 git push heroku master 

你必须a)在你的node_chat文件夹中,b)先安装npm,然后把所有东西(git add。)都放到heroku中!