Mongodbに接続できません。はい実行中

Question

私は自分のプロジェクトをテストしようとしていて、実行していてもmongodbに接続せず、CMDプロンプトでそのプロジェクトに接続できます。ここで

は、エラーが

C:\Users\RockConqueredMe\Projects\volunteer-v.1.0\node_modules\mongoose\node_mod 
ules\mongodb\lib\server.js:258 
     process.nextTick(function() { throw err; }) 
            ^
MongoError: failed to connect to server [mongodb:27017] on first connect 
    at Pool.<anonymous> (C:\Users\RockConqueredMe\Projects\volunteer-v.1.0\node_ 
modules\mongoose\node_modules\mongodb-core\lib\topologies\server.js:309:35) 
    at emitOne (events.js:96:13) 
    at Pool.emit (events.js:188:7) 
    at Connection.<anonymous> (C:\Users\RockConqueredMe\Projects\volunteer-v.1.0 
\node_modules\mongoose\node_modules\mongodb-core\lib\connection\pool.js:270:12) 
    at Connection.g (events.js:291:16) 
    at emitTwo (events.js:106:13) 
    at Connection.emit (events.js:191:7) 
    at Socket.<anonymous> (C:\Users\RockConqueredMe\Projects\volunteer-v.1.0\nod 
e_modules\mongoose\node_modules\mongodb-core\lib\connection\connection.js:175:49 
) 
    at Socket.g (events.js:291:16) 
    at emitOne (events.js:96:13) 
    at Socket.emit (events.js:188:7) 
    at connectErrorNT (net.js:1020:8) 
    at _combinedTickCallback (internal/process/next_tick.js:74:11) 
    at process._tickCallback (internal/process/next_tick.js:98:9) 

です。ここあなたのMongoDB接続URLが有効ではありませんapp.jsからコード

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 mongoose = require('mongoose'); 
var passport = require('passport'); 
var LocalStrategy = require('passport-local').Strategy; 

var index = require('./routes/index'); 
var users = require('./routes/users'); 

var app = express(); 

// view engine setup app.set('views', path.join(__dirname, 'views')); 
app.set('view engine', 'jade'); 

// 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(passport.initialize()); app.use(passport.session()); 
app.use(express.static(path.join(__dirname, 'public'))); 

app.use('/', index); 
app.use('/users', users); //passport config var 
Account = require('./models/account'); 
passport.use(new LocalStrategy(Account.authenticate())); 
passport.serializeUser(Account.serializeUser()); 
passport.deserializeUser(Account.deserializeUser()); //mongoose 
mongoose.connect('mongodb:localhost/passport_local_mongoose_express4'); 

// 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 handler app.use(function(err, req, res, next) { // set 
locals, only providing error in development 
res.locals.message = err.message; 
res.locals.error = req.app.get('env') === 'development' ? err : {}; 

    // render the error page res.status(err.status || 500); 
res.render('error'); }); 
module.exports = app; 

Answer 1

です。それは次のようになります。

mongoose.connect('mongodb://localhost/passport_local_mongoose_express4'); 

はmongodb:後//に注意してください。