npm start会带来错误
我正在学习这个教程： https : //thinkster.io/mean-stack-tutorial
我正在开始与mongodb合作
要启动mongodb我使用这个命令： sudo mongod &
我的app.js文件：
var express = require('express'); var path = require('path'); var favicon = require('serve-favicon'); var logger = require('morgan'); var cookieParser = require('cookie-parser'); var bodyParser = require('body-parser'); var routes = require('./routes/index'); var users = require('./routes/users'); var mongoose = require('mongoose'); require('./models/Posts'); require('./models/Comments'); mongoose.connect('mongodb://localhost/news'); var app = express(); // view engine setup app.set('views', path.join(__dirname, 'views')); app.set('view engine', 'ejs'); // uncomment after placing your favicon in /public //app.use(favicon(path.join(__dirname, 'public', 'favicon.ico'))); app.use(logger('dev')); app.use(bodyParser.json()); app.use(bodyParser.urlencoded({ extended: false })); app.use(cookieParser()); app.use(express.static(path.join(__dirname, 'public'))); app.use('/', routes); app.use('/users', users); // catch 404 and forward to error handler app.use(function(req, res, next) { var err = new Error('Not Found'); err.status = 404; next(err); }); // error handlers // development error handler // will print stacktrace if (app.get('env') === 'development') { app.use(function(err, req, res, next) { res.status(err.status || 500); res.render('error', { message: err.message, error: err }); }); } // production error handler // no stacktraces leaked to user app.use(function(err, req, res, next) { res.status(err.status || 500); res.render('error', { message: err.message, error: {} }); }); module.exports = app;
和我的index.js文件（路线）：
var express = require('express'); var router = express.Router(); var mongoose = require('mongoose'); var Post = mongoose.model('Post'); var Comment = mongoose.model('Comment'); /* GET home page. */ router.get('/', function(req, res, next) { res.render('index', { title: 'Express' }); }); router.get('/posts', function(req, res, next){ var post = new Post(req.body); Post.save(function(err, posts){ if(err){return next(err);} res.json(posts); }); }); module.exports = router;
然后当我键入npm start在我的terminalnpm start我得到这些错误：
jsantana@jsantana-Inspiron-3521:~/Documents/mean/flapper_news/flapper-news$ npm start > flapper-news@0.0.0 start /home/jsantana/Documents/mean/flapper_news/flapper-news > node ./bin/www /home/jsantana/Documents/mean/flapper_news/flapper-news/node_modules/mongoose/lib/index.js:333 throw new mongoose.Error.MissingSchemaError(name); ^ MissingSchemaError: Schema hasn't been registered for model "Post". Use mongoose.model(name, schema) at Mongoose.model (/home/jsantana/Documents/mean/flapper_news/flapper-news/node_modules/mongoose/lib/index.js:333:13) at Object.<anonymous> (/home/jsantana/Documents/mean/flapper_news/flapper-news/routes/index.js:5:21) at Module._compile (module.js:425:26) at Object.Module._extensions..js (module.js:432:10) at Module.load (module.js:356:32) at Function.Module._load (module.js:311:12) at Module.require (module.js:366:17) at require (module.js:385:17) at Object.<anonymous> (/home/jsantana/Documents/mean/flapper_news/flapper-news/app.js:8:14) at Module._compile (module.js:425:26) at Object.Module._extensions..js (module.js:432:10) at Module.load (module.js:356:32) at Function.Module._load (module.js:311:12) at Module.require (module.js:366:17) at require (module.js:385:17) at Object.<anonymous> (/home/jsantana/Documents/mean/flapper_news/flapper-news/bin/www:7:11) npm ERR! Linux 3.16.0-51-generic npm ERR! argv "/home/jsantana/local/bin/node" "/home/jsantana/local/bin/npm" "start" npm ERR! node v5.0.0 npm ERR! npm v3.3.6 npm ERR! code ELIFECYCLE npm ERR! flapper-news@0.0.0 start: `node ./bin/www` npm ERR! Exit status 1 npm ERR! npm ERR! Failed at the flapper-news@0.0.0 start script 'node ./bin/www'. npm ERR! This is most likely a problem with the flapper-news package, npm ERR! not with npm itself. npm ERR! Tell the author that this fails on your system: npm ERR! node ./bin/www npm ERR! You can get their info via: npm ERR! npm owner ls flapper-news npm ERR! There is likely additional logging output above. npm ERR! Please include the following file with any support request: npm ERR! /home/jsantana/Documents/mean/flapper_news/flapper-news/npm-debug.log
这里是包含文件夹结构的github： https ： //github.com/jsantana90/meanstacktutorial
题
我该如何解决这个错误？ 我对MEAN堆栈和MongoDB很陌生。
感谢您的时间！
在定义路线之前，您必须首先要求您的mongoose模型
错误地你有这个序列：
var routes = require('./routes/index'); var users = require('./routes/users'); var mongoose = require('mongoose'); require('./models/Posts'); require('./models/Comments'); mongoose.connect('mongodb://localhost/news');
尝试这个顺序：
var mongoose = require('mongoose'); mongoose.connect('mongodb://localhost/news'); require('./models/Posts'); require('./models/Comments'); var routes = require('./routes/index'); var users = require('./routes/users');