错误:passport.initialize()中间件未按调用顺序使用

我有以下-最初由Visual Studio节点工具生成，使用Express和Jade作为客户端

/**
 * Module dependencies.
 */
var express         = require('express');
var fs              = require('fs');
var routes          = require('./routes');
var user            = require('./routes/user');
var http            = require('http');
var https           = require('https');
var path            = require('path');
var passport        = require('passport');
var googleStrategy  = require('passport-google-oauth').OAuth2Strategy;
var loginHandler    = require('./routes/Login.js');
var auth            = require('./config/auth.js');
var googleSupport   = require('./googleSupport.js');
var googleAuthority = auth.googleAuth;
var googleScopes = '';

// retrieve google scopes
googleScopes = googleSupport.discoverServiceScopes(auth.googleAuth);
// set up passport
passport.serializeUser(function (user,done) {
    done(null, user);
});
passport.deserializeUser(function (obj, done) {
    done(null, obj);
});
passport.use(new googleStrategy({
    clientID: googleAuthority.clientId,
    clientSecret: googleAuthority.clientSecret,
    callbackURL: googleAuthority.callbackUrl
},
function (accessToken, refreshToken, profile, done) {
    return done(null, profile);
}
));
var request = require('request');
var app = express();
// all environments
app.set('port', process.env.PORT || 3000);
app.set('views', path.join(__dirname, 'views'));
app.set('view engine', 'jade');
app.use(express.favicon());
app.use(express.logger('dev'));
app.use(express.json());
app.use(express.urlencoded());
app.use(express.methodOverride());
app.use(app.router);
app.use(require('stylus').middleware(path.join(__dirname, 'public')));
app.use(express.static(path.join(__dirname, 'public')));
// development only
if ('development' == app.get('env')) {
    app.use(express.errorHandler());
}
console.log('extracting service scopes');
app.get(passport.initialize());
app.get(passport.session());
app.get('/', routes.index);
app.get('/index', routes.index);
// google login support
// go to login page.
app.get('/googleLogin', passport.authenticate('google', { scope: [googleScopes] }), 
    function (req, res) {
        res.redirect('/');
    }
);
app.get('/AuthorizeGoogle', passport.authenticate('google', { failureRedirect: '/'}), 
    function (req, res) { 
        res.redirect('/');
    });

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

当它验证用户时我得到以下

500 Error: passport.initialize() middleware not in use
at IncomingMessage.req.login.req.logIn (C:'Node'YourLivesN'YourLivesN'node_modules'passport'lib'http'request.js:44:34)
at Strategy.module.exports.strategy.success (C:'Node'YourLivesN'YourLivesN'node_modules'passport'lib'middleware'authenticate.js:228:13)
at verified (C:'Node'YourLivesN'YourLivesN'node_modules'passport-oauth'node_modules'passport-oauth2'lib'strategy.js:179:18)
at Strategy._verify (C:'Node'YourLivesN'YourLivesN'app.js:41:12)
at C:'Node'YourLivesN'YourLivesN'node_modules'passport-oauth'node_modules'passport-oauth2'lib'strategy.js:195:22
at C:'Node'YourLivesN'YourLivesN'node_modules'passport-google-oauth'lib'passport-google-oauth'oauth2.js:115:7
at passBackControl (C:'Node'YourLivesN'YourLivesN'node_modules'passport-oauth'node_modules'passport-oauth2'node_modules'oauth'lib'oauth2.js:125:9)
at IncomingMessage. (C:'Node'YourLivesN'YourLivesN'node_modules'passport-oauth'node_modules'passport-oauth2'node_modules'oauth'lib'oauth2.js:143:7)
at IncomingMessage.emit (events.js:129:20)
at _stream_readable.js:908:16

现在我假设这是相同的原因，这个问题passport.js passport.initialize()中间件没有使用，但无法看到调用应该在我的代码中的顺序。

那么谁能告诉我代码的各个部分应该按什么顺序排列呢?

谢谢