部署到Heroku時失敗

Question

我試圖將我的應用程序部署到Heroku。

構建成功，但存在應用程序錯誤。

這裏是生成日誌：

2017-08-19T10:52:32.433135+00:00 heroku[web.1]: State changed from crashed to 
starting 

2017-08-19T10:52:20.000000+00:00 app[api]: Build succeeded                

2017-08-19T10:52:34.561890+00:00 heroku[web.1]: Starting process with command 
`node app.js` 

2017-08-19T10:52:38.533264+00:00 app[web.1]: (node:4) DeprecationWarning: 
`open()` is deprecated in mongoose >= 4.11.0, use `openUri()` instead, or set 
the `useMongoClient` option if using `connect()` or `createConnection()`. See 
http://mongoosejs.com/docs/connections.html#use-mongo-client 

2017-08-19T10:52:38.577755+00:00 app[web.1]: Db.prototype.authenticate method 
will no longer be available in the next major release 3.x as MongoDB 3.6 will 
only allow auth against users in the admin db and will no longer allow 
multiple credentials on a socket. Please authenticate using 
MongoClient.connect with auth credentials. 

2017-08-19T10:52:38.879889+00:00 app[web.1]: the data has been seeded 

2017-08-19T10:53:38.120507+00:00 heroku[router]: at=error code=H10 desc="App 
crashed" method=GET path="/" host=murmuring-garden-83350.herokuapp.com 
request_id=dae4f901-83d5-442c-bca0-396508c8661e fwd="83.185.242.212" dyno= 
connect= service= status=503 bytes= protocol=https 

真的希望有人能指出我在正確的方向。謝謝。

Answer 1

找到我這裏的解決方案：Heroku + node.js error (Web process failed to bind to $PORT within 60 seconds of launch)

在我的情況下我的應用程序崩潰，因爲我很難設置端口，而不是使用Heroku的dinamicaly設置端口，可與process.env.PORT

訪問

app.listen(process.env.PORT || 3000, function(){ 
console.log("Express server listening on port %d in %s mode", 
this.address().port, app.settings.env); 
});