将Node.js应用程序部署到Heroku的应用程序错误

我是部署Github项目到Heroku的新手。到目前为止，我已经成功将我的应用程序连接到Heroku并进行了部署。该项目在我的本地机器上运行良好。然而，当我尝试启动我的应用程序的Heroku的网站，它给了我这个错误：将Node.js应用程序部署到Heroku的应用程序错误

"An error occurred in the application and your page could not be served. Please try again in a few moments.

If you are the application owner, check your logs for details."

这里是我的Heroku的日志，这我无法理解。

2015-11-10T04:33:10.538175+00:00 heroku[router]: at=error code=H10 desc="App crashed" method=GET path="/favicon.ico" host=compasss.herokuapp.com request_id=af3a9061-1b8f-47fe-9e2e-eafa624f2712 fwd="138.110.234.184" dyno= connect= service= status=503 bytes= 
2015-11-10T04:33:10.649481+00:00 heroku[router]: at=error code=H10 desc="App crashed" method=GET path="/" host=compasss.herokuapp.com request_id=e8fc1b43-f629-4e38-85c9-808d731e852e fwd="138.110.234.184" dyno= connect= service= status=503 bytes= 
2015-11-10T04:33:11.334843+00:00 heroku[router]: at=error code=H10 desc="App crashed" method=GET path="/favicon.ico" host=compasss.herokuapp.com request_id=149ffc6c-8a57-475c-9f64-5224bcf72bfd fwd="138.110.234.184" dyno= connect= service= status=503 bytes= 
2015-11-10T04:33:12.207897+00:00 heroku[router]: at=error code=H10 desc="App crashed" method=GET path="/favicon.ico" host=compasss.herokuapp.com request_id=4585d320-5d3b-43a0-ab85-a84f9734e373 fwd="138.110.234.184" dyno= connect= service= status=503 bytes= 
2015-11-10T04:35:18.757410+00:00 heroku[router]: at=error code=H10 desc="App crashed" method=GET path="/" host=compasss.herokuapp.com request_id=1d59ddd7-ff62-4b01-8b3a-df450fac5ba5 fwd="138.110.234.184" dyno= connect= service= status=503 bytes= 
2015-11-10T04:35:19.737947+00:00 heroku[router]: at=error code=H10 desc="App crashed" method=GET path="/favicon.ico" host=compasss.herokuapp.com request_id=2f8f9bc8-8299-4da9-bdad-eed9fa537573 fwd="138.110.234.184" dyno= connect= service= status=503 bytes= 
2015-11-10T04:35:19.503853+00:00 heroku[router]: at=error code=H10 desc="App crashed" method=GET path="/favicon.ico" host=compasss.herokuapp.com request_id=77870378-cde5-48e2-b4d2-e93526b1e10d fwd="138.110.234.184" dyno= connect= service= status=503 bytes= 
2015-11-10T04:41:09.087924+00:00 heroku[api]: Deploy 5c325e8 by [email protected] 
2015-11-10T04:41:09.087924+00:00 heroku[api]: Release v6 created by [email protected] 
2015-11-10T04:41:09.271289+00:00 heroku[slug-compiler]: Slug compilation started 
2015-11-10T04:41:09.271300+00:00 heroku[slug-compiler]: Slug compilation finished 
2015-11-10T04:41:11.469002+00:00 heroku[web.1]: State changed from crashed to starting 
2015-11-10T04:41:12.469938+00:00 heroku[web.1]: Starting process with command `node app.js` 
2015-11-10T04:41:14.322786+00:00 app[web.1]: module.js:339 
2015-11-10T04:41:14.322794+00:00 app[web.1]:  throw err; 
2015-11-10T04:41:14.322795+00:00 app[web.1]: ^
2015-11-10T04:41:14.322796+00:00 app[web.1]: 
2015-11-10T04:41:14.322797+00:00 app[web.1]: Error: Cannot find module 'express3-handlebars' 
2015-11-10T04:41:14.322797+00:00 app[web.1]:  at Function.Module._resolveFilename (module.js:337:15) 
2015-11-10T04:41:14.322798+00:00 app[web.1]:  at Function.Module._load (module.js:287:25) 
2015-11-10T04:41:14.322799+00:00 app[web.1]:  at Module.require (module.js:366:17) 
2015-11-10T04:41:14.322799+00:00 app[web.1]:  at require (module.js:385:17) 
2015-11-10T04:41:14.322800+00:00 app[web.1]:  at Object.<anonymous> (/app/app.js:6:18) 
2015-11-10T04:41:14.322800+00:00 app[web.1]:  at Module._compile (module.js:425:26) 
2015-11-10T04:41:14.322801+00:00 app[web.1]:  at Object.Module._extensions..js (module.js:432:10) 
2015-11-10T04:41:14.322802+00:00 app[web.1]:  at Module.load (module.js:356:32) 
2015-11-10T04:41:14.322802+00:00 app[web.1]:  at Function.Module._load (module.js:311:12) 
2015-11-10T04:41:14.322803+00:00 app[web.1]:  at Function.Module.runMain (module.js:457:10) 
2015-11-10T04:41:15.124877+00:00 heroku[web.1]: State changed from starting to crashed 
2015-11-10T04:41:15.116760+00:00 heroku[web.1]: Process exited with status 1 
2015-11-10T04:44:48.813133+00:00 heroku[router]: at=error code=H10 desc="App crashed" method=GET path="/" host=compasss.herokuapp.com request_id=81fddfea-92e6-4c64-91aa-ec5d076fb8e6 fwd="138.110.234.184" dyno= connect= service= status=503 bytes= 
2015-11-10T04:44:49.590449+00:00 heroku[router]: at=error code=H10 desc="App crashed" method=GET path="/favicon.ico" host=compasss.herokuapp.com request_id=efa1b5fc-5a1e-4b31-acef-5a1025e8c99d fwd="138.110.234.184" dyno= connect= service= status=503 bytes= 
2015-11-10T04:44:49.955648+00:00 heroku[router]: at=error code=H10 desc="App crashed" method=GET path="/favicon.ico" host=compasss.herokuapp.com request_id=4af0cf53-ea53-4361-a5d2-6a3efc51a62f fwd="138.110.234.184" dyno= connect= service= status=503 bytes= 
2015-11-10T04:51:46.883632+00:00 heroku[api]: Deploy b0f6afe by [email protected] 
2015-11-10T04:51:46.883703+00:00 heroku[api]: Release v7 created by [email protected] 
2015-11-10T04:51:46.979243+00:00 heroku[web.1]: State changed from crashed to starting 
2015-11-10T04:51:47.041376+00:00 heroku[slug-compiler]: Slug compilation started 
2015-11-10T04:51:47.041386+00:00 heroku[slug-compiler]: Slug compilation finished 
2015-11-10T04:51:48.436794+00:00 heroku[web.1]: Starting process with command `node app.js` 
2015-11-10T04:51:50.436732+00:00 app[web.1]: module.js:339 
2015-11-10T04:51:50.436759+00:00 app[web.1]:  at Function.Module._load (module.js:287:25) 
2015-11-10T04:51:50.436761+00:00 app[web.1]:  at Module._compile (module.js:425:26) 
2015-11-10T04:51:50.436754+00:00 app[web.1]:  throw err; 
2015-11-10T04:51:50.436756+00:00 app[web.1]: 
2015-11-10T04:51:50.436763+00:00 app[web.1]:  at Function.Module._load (module.js:311:12) 
2015-11-10T04:51:50.436755+00:00 app[web.1]: ^
2015-11-10T04:51:50.436759+00:00 app[web.1]:  at Module.require (module.js:366:17) 
2015-11-10T04:51:50.436757+00:00 app[web.1]: Error: Cannot find module 'express3-handlebars' 
2015-11-10T04:51:50.436758+00:00 app[web.1]:  at Function.Module._resolveFilename (module.js:337:15) 
2015-11-10T04:51:50.436762+00:00 app[web.1]:  at Object.Module._extensions..js (module.js:432:10) 
2015-11-10T04:51:50.436764+00:00 app[web.1]:  at Function.Module.runMain (module.js:457:10) 
2015-11-10T04:51:50.436760+00:00 app[web.1]:  at require (module.js:385:17) 
2015-11-10T04:51:50.436760+00:00 app[web.1]:  at Object.<anonymous> (/app/app.js:6:18) 
2015-11-10T04:51:50.436762+00:00 app[web.1]:  at Module.load (module.js:356:32) 
2015-11-10T04:51:51.157210+00:00 heroku[web.1]: Process exited with status 1 
2015-11-10T04:51:52.735586+00:00 heroku[web.1]: Starting process with command `node app.js` 
2015-11-10T04:51:55.545983+00:00 app[web.1]: module.js:339 
2015-11-10T04:51:55.545998+00:00 app[web.1]:  throw err; 
2015-11-10T04:51:55.545999+00:00 app[web.1]: ^
2015-11-10T04:51:55.545999+00:00 app[web.1]: 
2015-11-10T04:51:55.546001+00:00 app[web.1]: Error: Cannot find module 'express3-handlebars' 
2015-11-10T04:51:55.546002+00:00 app[web.1]:  at Function.Module._resolveFilename (module.js:337:15) 
2015-11-10T04:51:55.546002+00:00 app[web.1]:  at Function.Module._load (module.js:287:25) 
2015-11-10T04:51:55.546003+00:00 app[web.1]:  at Module.require (module.js:366:17) 
2015-11-10T04:51:55.546003+00:00 app[web.1]:  at require (module.js:385:17) 
2015-11-10T04:51:55.546004+00:00 app[web.1]:  at Object.<anonymous> (/app/app.js:6:18) 
2015-11-10T04:51:55.546004+00:00 app[web.1]:  at Module._compile (module.js:425:26) 
2015-11-10T04:51:55.546005+00:00 app[web.1]:  at Object.Module._extensions..js (module.js:432:10) 
2015-11-10T04:51:55.546006+00:00 app[web.1]:  at Module.load (module.js:356:32) 
2015-11-10T04:51:55.546007+00:00 app[web.1]:  at Function.Module.runMain (module.js:457:10) 
2015-11-10T04:51:55.546006+00:00 app[web.1]:  at Function.Module._load (module.js:311:12) 
2015-11-10T04:51:51.172084+00:00 heroku[web.1]: State changed from starting to crashed 
2015-11-10T04:51:51.173050+00:00 heroku[web.1]: State changed from crashed to starting 
2015-11-10T04:51:56.492216+00:00 heroku[web.1]: Process exited with status 1 
2015-11-10T04:51:56.506380+00:00 heroku[web.1]: State changed from starting to crashed 
2015-11-10T04:53:27.766915+00:00 heroku[api]: Deploy 15c64ba by [email protected] 
2015-11-10T04:53:27.766915+00:00 heroku[api]: Release v8 created by [email protected] 
2015-11-10T04:53:27.910792+00:00 heroku[slug-compiler]: Slug compilation started 
2015-11-10T04:53:27.910801+00:00 heroku[slug-compiler]: Slug compilation finished 
2015-11-10T04:53:27.921730+00:00 heroku[web.1]: State changed from crashed to starting 
2015-11-10T04:53:29.221014+00:00 heroku[web.1]: Starting process with command `node app.js` 
2015-11-10T04:53:31.264123+00:00 app[web.1]: module.js:339 
2015-11-10T04:53:31.264132+00:00 app[web.1]:  throw err; 
2015-11-10T04:53:31.264133+00:00 app[web.1]: ^
2015-11-10T04:53:31.264134+00:00 app[web.1]: 
2015-11-10T04:53:31.264135+00:00 app[web.1]: Error: Cannot find module 'express3-handlebars' 
2015-11-10T04:53:31.264136+00:00 app[web.1]:  at Function.Module._resolveFilename (module.js:337:15) 
2015-11-10T04:53:31.264136+00:00 app[web.1]:  at Function.Module._load (module.js:287:25) 
2015-11-10T04:53:31.264137+00:00 app[web.1]:  at Module.require (module.js:366:17) 
2015-11-10T04:53:31.264138+00:00 app[web.1]:  at require (module.js:385:17) 
2015-11-10T04:53:31.264138+00:00 app[web.1]:  at Object.<anonymous> (/app/app.js:6:18) 
2015-11-10T04:53:31.264139+00:00 app[web.1]:  at Module._compile (module.js:425:26) 
2015-11-10T04:53:31.264140+00:00 app[web.1]:  at Object.Module._extensions..js (module.js:432:10) 
2015-11-10T04:53:31.264140+00:00 app[web.1]:  at Module.load (module.js:356:32) 
2015-11-10T04:53:31.264141+00:00 app[web.1]:  at Function.Module._load (module.js:311:12) 
2015-11-10T04:53:31.264141+00:00 app[web.1]:  at Function.Module.runMain (module.js:457:10) 
2015-11-10T04:53:31.969583+00:00 heroku[web.1]: Process exited with status 1 
2015-11-10T04:53:31.989169+00:00 heroku[web.1]: State changed from starting to crashed 
2015-11-10T04:54:44.812224+00:00 heroku[router]: at=error code=H10 desc="App crashed" method=GET path="/" host=compasss.herokuapp.com request_id=a508a64d-8a85-4d09-a610-67ef57854186 fwd="138.110.234.184" dyno= connect= service= status=503 bytes= 
2015-11-10T04:54:45.733283+00:00 heroku[router]: at=error code=H10 desc="App crashed" method=GET path="/favicon.ico" host=compasss.herokuapp.com request_id=1a312b38-8793-41fa-9a77-2d2e7f0c63f2 fwd="138.110.234.184" dyno= connect= service= status=503 bytes= 
2015-11-10T04:54:45.461863+00:00 heroku[router]: at=error code=H10 desc="App crashed" method=GET path="/favicon.ico" host=compasss.herokuapp.com request_id=47d48dc9-3e16-4b49-8b25-7b56a8b3ccad fwd="138.110.234.184" dyno= connect= service= status=503 bytes=

我在想这个错误可能是由于我如何设置我的路线。这里是我的app.js，在那里我指定我的路线：

var express = require('express'); 
var app = express(); 
var http = require('http').Server(app); 

// set up handlebars view engine 
var handlebars = require('express3-handlebars') 
    .create({ defaultLayout:'main' }); 
app.engine('handlebars', handlebars.engine); 
app.set('view engine', 'handlebars'); 

http.listen(process.env.PORT || 3000, function(){ 
    console.log('listening on', http.address().port); 
}) 

// Home Page 
app.get('/', function(req, res){ 
    res.render('home'); 
}); 

// About Page 
app.get('/about', function(req, res){ 
    res.render('about'); 
}); 

// 404 catch-all handler (middleware) 
app.use(function(req, res){ 
    res.status(404); 
    res.render('404'); 
}); 

// 500 error handler (middleware) 
app.use(function(req, res){ 
    console.error(err.stack); 
    res.status(500); 
    res.render('500'); 
}); 

app.listen(app.get('port'), function(){ 
console.log('Express started on http://localhost:' + 
app.get('port') + '; press Ctrl-C to terminate.'); 
});

这里是我的package.json：

{ 
    "name": "Compass", 
    "version": "1.0.0", 
    "description": "Independent Study Application", 
    "main": "app.js", 
    "scripts": { 
    "test": "echo \"Error: no test specified\" && exit 1", 
    "start": "node app.js" 
    }, 
    "author": "Thao Bach", 
    "license": "ISC", 
    "dependencies": { 
    "express": "^4.13.3", 
    "express-handlebars": "^2.0.1", 
    "mongodb": "^2.0.46", 
    "monk": "^1.0.1" 
    }, 
    "devDependencies": { 
    "archiver": "^0.15.1", 
    "chai": "^3.3.0", 
    "fs-extra": "^0.24.0", 
    "mocha": "^2.3.3" 
    } 
}

来源

2015-11-10 johnwj

你能证明你的package.json？ – prasun

最有可能你没有在你的package.json否则被提及作为发展提到NPM依赖express3-handlebars依赖于你的package.json文件。

此外，在app.js您使用

var handlebars = require('express3-handlebars') 
    .create({ defaultLayout:'main' });

你可能想改变你的要求语句指向express-handlebars否则包括express3-handlebars的依赖

来源

2015-11-10 05:15:03 prasun

为什么当我在本地运行时不会抱怨？另外，如何包含express3句柄？我应该在“express-handlebars”之外添加它：“^ 2.0.1”？ – johnwj

在本地机器的根应用程序目录中查看“npm list express3-handlebars”命令作为app.js上的语句“var handlebars = require（'express3-handlebars'）”正在通过 – prasun

您可能意外安装在本地计算机上全局或只是在你的应用程序文件夹中，而不会将其标记为您的package.json中的依赖项 – prasun

将Node.js应用程序部署到Heroku的应用程序错误

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