Node.js 使用passport模块获取facebook个人资料事件

我试图让用户使用passport模块参加未来的活动，但我显然遗漏了一些东西。我遵循Facebook API并获得了所需的许可，如下所示：

    router.get('/auth/facebook', passport.authenticate('facebook', { scope: [ 'public_profile', 'user_events' ] }));
    router.get('/auth/facebook/callback', passport.authenticate('facebook', {
        successRedirect:'/welcome',
        failureRedirect:'/'
    }))

                    events:profile.events[0].name,
                                         ^
TypeError: Cannot read property '0' of undefined

但当我试图打印这样的事件时：

 passport.use(new FacebookStrategy({
        clientID: config.fb.appID,
        clientSecret: config.fb.appSecret,
        callbackURL: config.fb.callbackURL,
        profileFields: ['id', 'displayName', 'photos', 'birthday', 'events', 'profileUrl', 'emails', 'likes']
    }, function(accessToken, refershToken, profile, done){
        //Check if the user exists in our Mongo DB database
        //if not, create one and return the profile
        //if exists, return profile
        userModel.findOne({'profileID':profile.id}, function(err, result){
            if(result){
                done(null,result);
            } else {
                // Create a new user in our mongoLab account
                var newFbUSer = new userModel({
                    profileID: profile.id,
                    fullname: profile.displayName,
                    profilePic:profile.photos[0].value || '',
                    birthday:profile.birthday,
                    events:profile.events[0].name,
                    profileUrl:profile.profileUrl,

                });
                console.log(newFbUSer.profilePic);


                newFbUSer.save(function(err){
                    done(null,newFbUSer);
                })
            }
        })

                    events:profile.events[0].name,
                                         ^
TypeError: Cannot read property '0' of undefined

我得到这个错误：

                    events:profile.events[0].name,
                                         ^
TypeError: Cannot read property '0' of undefined

我试图用

value

替换

name

，因为它可以很好地处理照片，我还尝试了许多其他方法，但我就是无法让这一种工作……有什么帮助吗

                    events:profile.events[0].name,
                                         ^
TypeError: Cannot read property '0' of undefined