TypeError: Cannot read property ‘Store’ of undefined 解决方案明细 是由于版本问题引起

 // package.json 修改版本
   "connect": "1.8.5",
   "connect-mongo": "0.1.9",
  "express": "2.5.8",

 //app.js 中改变获取方法
 var express = require('express');
 var MongoStore = require('connect-mongo')(express),

TypeError: object is not a functionat Object.<anonymous> 如果报如上错误就是express 版本问题, "express": “2.5.8” 版本的写法：

var app = module.exports = express.createServer();
 app.listen(3000);

而新版本 express@3.0.0rc3 是这用写法：

 //app.set('port', process.env.PORT || 3000);
    var app = express();
   http.createServer(app).listen(app.get('port'), function(){
        console.log("Express server listening on port " + app.get('port'));
    });