Expressjs没有加载在heroku上的样式表，给出500错误 [英] Expressjs not loading stylesheets on heroku, giving 500 error

问题描述

我点击ctrl + u然后点击样式表链接，并获得这个错误：

  TypeError：Object＃< SendStream>没有方法'on'
在Object.static [as handle]（/app/node_modules/express/node_modules/connect/lib/middleware/static.js:75:8）
 at next（/ app / node_modules / express / node_modules / connect / lib / proto.js：190：15）
  

我去url'/stylesheets/style.css'我收到这个错误：

  Express 
 500 TypeError：对象＃< SendStream>没有方法'on'
 
在Object.static [as handle]（/app/node_modules/express/node_modules/connect/lib/middleware/static.js:75:8）
在下一个（/app/node_modules/express/node_modules/connect/lib/proto.js:190:15）
 at /app/node_modules/stylus/lib/middleware.js:174:46 
 at /app/node_modules/stylus/lib/middleware.js:208:20 
  

一切都在本地运行正常。

这里是package.json

  {
 name：app-name，
version：0.0.1，
private：true，
scripts：{
start ：node app
}，
dependencies：{
express：3.0.0rc1，
jade：*，
 stylus：*
} 
} 
  

app.js ：

  / ** 
 *模块依赖关系。 
 * / 
 var express = require（'express'）
，routes = require（'./ routes'）
，http = require（'http'）
，path = require（'path'）; 
 
 var app = express（）; 
 
 app.configure（function（）{
 app.set（'port'，process.env.PORT || 3000）; 
 app.set（'views' __dirname +'/ views'）; 
 app.set（'view engine'，'jade'）; 
 app.use（express.favicon（））; 
 app.use（express .logger（'dev'））; 
 app.use（express.bodyParser（））; 
 app.use（express.methodOverride（））; 
 app.use（app.router ）; 
 app.use（require（'stylus'）。middleware（__ dirname +'/ public'））; 
 app.use（express.static（path.join（__ dirname，'public'） ））; 
}）; 
 
 app.configure（'development'，function（）{
 app.use（express.errorHandler（））; 
}）; 
 
 app.get（'/'，routes.index）; 
 app.get（'/ about'，routes.about）; 
 
 http.createServer（app）.listen（app.get（'port'），function（）{
 console.log（Express server listening on port+ app.get 'port'））; 
}）; 
  

Procfile：

  web：node app.js 
  

如果我保持清醒，它会崩溃应用程序

解决方案

我可以通过在package.json中指定引擎依赖来解决这个问题。

  {
name：app-name，
version：0.0.1，
私人：true，
scripts：{
start：node app
}，
dependencies：{
express $$$$$$$$
 ：0.8.4，
npm：1.1.41
} 
} 
  

I'm running an Expressjs installation on heroku, and it's not loading the stylesheets.

I hit ctrl+u and then click on the stylesheet link, and get this error:

TypeError: Object #<SendStream> has no method 'on'
    at Object.static [as handle] (/app/node_modules/express/node_modules/connect/lib/middleware/static.js:75:8)
    at next (/app/node_modules/express/node_modules/connect/lib/proto.js:190:15)

When I go to the url '/stylesheets/style.css' I get this error:

Express
500 TypeError: Object #<SendStream> has no method 'on'

    at Object.static [as handle] (/app/node_modules/express/node_modules/connect/lib/middleware/static.js:75:8)
    at next (/app/node_modules/express/node_modules/connect/lib/proto.js:190:15)
    at /app/node_modules/stylus/lib/middleware.js:174:46
    at /app/node_modules/stylus/lib/middleware.js:208:20

Everything works fine locally.

here is the package.json

  {
    "name": "app-name",
      "version": "0.0.1",
      "private": true,
      "scripts": {
      "start": "node app"
     },
     "dependencies": {
       "express": "3.0.0rc1",
       "jade": "*",
       "stylus": "*"
     }
   }

The app.js:

/**
 * Module dependencies.
 */
 var express = require('express')
  , routes = require('./routes')
  , http = require('http')
  , path = require('path');

var app = express();

app.configure(function(){
  app.set('port', process.env.PORT || 3000);
  app.set('views', __dirname + '/views');
  app.set('view engine', 'jade');
  app.use(express.favicon());
  app.use(express.logger('dev'));
  app.use(express.bodyParser());
  app.use(express.methodOverride());
  app.use(app.router);
  app.use(require('stylus').middleware(__dirname + '/public'));
  app.use(express.static(path.join(__dirname, 'public')));
});

app.configure('development', function(){
  app.use(express.errorHandler());
});

app.get('/', routes.index);
app.get('/about', routes.about);

http.createServer(app).listen(app.get('port'), function(){
  console.log("Express server listening on port " + app.get('port'));
});

The Procfile:

web: node app.js

If I keep refreshing, it crashes the app.

解决方案

I was able to solve this by specifying the engine dependencies in the package.json

{
  "name": "app-name",
  "version": "0.0.1",
  "private": true,
  "scripts": {
    "start": "node app"
  },
  "dependencies": {
    "express": "3.0.0rc1",
    "jade": "*",
    "stylus": "*"
  },
  "engines": {
    "node": "0.8.4",
    "npm": "1.1.41"
  }
}

这篇关于Expressjs没有加载在heroku上的样式表，给出500错误的文章就介绍到这了，希望我们推荐的答案对大家有所帮助，也希望大家多多支持IT屋！