I am trying to create a simple node.js app with passport local authentication using mongoDb and express as a framework,but I'm having a problem

Whenever I try to submit the data into database using registration form,after clicking submit it appears in node terminal immediately :

here is how my user schema looks like:

    var mongoose = require('mongoose');

var bcrypt   = require('bcrypt-nodejs');



// define the schema for our user model

var userSchema = mongoose.Schema({



    local            : {

        name    : String,

        username     : String,

        mobile       : Number,

        email        : String,

        gender       : String,

        password     : String



    }

});



// methods ======================

// generating a hash

userSchema.methods.generateHash = function(password) {

    return bcrypt.hashSync(password, bcrypt.genSaltSync(8), null);

};



// checking if password is valid

userSchema.methods.validPassword = function(password) {

    return bcrypt.compareSync(password, this.local.password);

};



// create the model for users and expose it to our app

module.exports = mongoose.model('User', userSchema);

and my router file :

 // process the signup form

    app.post('/signup', passport.authenticate('local-signup', {

        successRedirect : '/profile', // redirect to the secure profile section

        failureRedirect : '/signup', // redirect back to the signup page if there is an error

        failureFlash : true // allow flash messages

    }));

passport configuration for sign up logic :

    passport.use('local-signup', new LocalStrategy({



    nameField     : 'name',    

    usernameField : 'username',

    mobileField   : 'mobile',

    emailField    : 'email',

    genderField   : 'gender',

    passwordField : 'password',

    passReqToCallback : true // allows us to pass back the entire request to the callback

},

function(req, name, username, mobile, email, gender, password, done) {



    // asynchronous

    // User.findOne wont fire unless data is sent back

    process.nextTick(function() {



    // find a user whose email is the same as the forms email

    // we are checking to see if the user trying to login already exists

    User.findOne({ 'local.email' :  email }, function(err, user) {

        // if there are any errors, return the error

        if (err)

            return done(err);





        // check to see if theres already a user with that email

        if (user) {

            return done(null, false, req.flash('signupMessage', 'That email is already taken.'));

        } else {



            // if there is no user with that email

            // create the user

            var newUser            = new User();



            // set the user's local credentials

            newUser.local.name     = name;

            newUser.local.username = username;

            newUser.local.mobile   = mobile;

            newUser.local.email    = email;

            newUser.local.gender   = gender;

            newUser.local.password = newUser.generateHash(password);



            // save the user

            newUser.save(function(err) {

                if (err)

                    throw err;



                return done(null, newUser);

            });

        }



    });



    });



}));

I am new to node.js as well as in mongoDb please help me out

Thanks