oauthon-server这个模块出错

var express = require('express'), bodyParser = require("body-parser"), oauthserver = require('oauth2-server'); var i = require('./modle'); var app = express(); app.use(bodyParser.urlencoded({extended:true})); app.use(bodyParser.json); app.oaut = oauthserver( { model: require('./modle'), grants:['password'], debug:true }); app.all('/oauth/token',app.oaut.grant()); app.get('/'.app.oaut.authorise(),function(req,res){ res.send("secret area"); }) //app.use(app.oaut.errorHandler()); app.listen(8080);

出现错