Cannot read property 'beforeEach' of undefined about vue-auth HOT 7 CLOSED

router.start(App, 'app', () => {
  Vue.router = router
  Vue.use(JwtAuth)
  console.log('=====done with load==== ' + new Date())
})

Vue.router = new VueRouter();

let router = new VueRouter();

Vue.use(JwtAuth, {}, router);

Vue.use(require('vue-jwt-auth'), {}, router);

import Vue from 'vue'
import VueRouter from 'vue-router'
import App from './App'

Vue.config.devtools = true

// config router
Vue.use(VueRouter)
const router = new VueRouter()
Vue.router = router
Vue.use(require('vue-jwt-auth'), {}, router)
router.map({
  '/admin': {
    auth: 'admin',
    component: require('./Admin')
  },
  '/login': {
    auth: false,
    component: require('./Login')
  }
})

router.start(App, 'app', () => {
  // Vue.use(require('vue-jwt-auth'))
  // Vue.router = router
  // Vue.use(require('vue-jwt-auth'), {}, router)
  console.log('=====done with load==== ' + new Date())
})

vue-jwt-auth.js?5662:247 Uncaught ReferenceError: Vue is not defined  
     created @ vue-jwt-auth.js?5662:247  
     Vue._callHook @ vue.common.js?b6d4:8199  
     Vue._init @ vue.common.js?b6d4:2453  
     Vue._init @ vue-router.js?2e68:1756  
     Vue @ vue.common.js?b6d4:9474
     install @ vue-jwt-auth.js?5662:420
    Vue.use @ vue.common.js?b6d4:9966
   (anonymous function) @ main.js?3479:11
   (anonymous function) @ app.js:649
   __webpack_require__ @ app.js:556
    fn @ app.js:87
   (anonymous function) @ app.js:587
   __webpack_require__ @ app.js:556
   (anonymous function) @ app.js:579
   (anonymous function) @ app.js:582

import VueResource from 'vue-resource'
Vue.use(VueResource);