小编Tes*_* te的帖子

我收到 ReferenceError: mongoose is not defined。我是 node 的新手，请 App.js 代码如下所示。我无法通过谷歌提供的所有答案来解决它。

   var express = require('express');
 var app = require('mongoose');
 var path = require('path');
 var favicon = require('serve-favicon');
var logger = require('morgan');
var cookieParser = require('cookie-parser'); 
var bodyParser = require('body-parser');

 var index = require('./routes/index');
var users = require('./routes/users');
var app = express();
app.set('views', path.join(__dirname, 'views')); 
   app.set('view engine', 'jade');

 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('/', index);
 app.use('/users', users);
 app.use(function(req, res, next) {
 var err = new Error('Not Found');
  err.status …