应用程序错误部署Node.js应用程序到Heroku

我是Github项目部署到Heroku的新手。 到目前为止，我已经成功地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。 但是，当我尝试启动我的应用程序的heroku网站时，它给了我这个错误：

“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。“

这是我的英雄日志，我很难理解。

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 [e-mail] 2015-11-10T04:41:09.087924+00:00 heroku[api]: Release v6 created by [e-mail] 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 [e-mail] 2015-11-10T04:51:46.883703+00:00 heroku[api]: Release v7 created by [e-mail] 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 [e-mail] 2015-11-10T04:53:27.766915+00:00 heroku[api]: Release v8 created by [e-mail] 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 ，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" } } 

Answer 1

很可能你没有在你的package.json提到的npm依赖express3-handlebars ，否则它在你的package.json文件中被称为开发依赖。

另外，在你的app.js中使用

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

您可能需要将您的require语句更改为express-handlebars ，否则express3-handlebars作为依赖项