vue2.0构建一个SPA，router-view不切换

vue切换到2.0，vue-router也是2.0版本，代码如下，router-view没有变化，肯定哪里写错了，我现在看迷糊了，实在找不出来了，求助

/src/main.js

import Vue from 'vue'
import App from './App.vue'
import router from './router'
import store from './store'
import { sync } from 'vuex-router-sync'
sync(store, router)
new Vue({
  router,
  store,
  ...App
}).$mount('#app')

/src/router/index.js

import Vue from 'vue'
import routes from './routes'
import VueRouter from 'vue-router'
Vue.use(VueRouter)
const router = new VueRouter({
  mode: 'history',
  routes
})
export default router

/src/router/routes.js

import loader from './loader'
const routes = [
  { path: '/index', name: 'index', component: (r) => require(['./../views/index.vue'], r) }
]
export default routes

/src/store/index.js

import Vue from 'vue'
import Vuex from 'vuex'
Vue.use(Vuex)
const store = new Vuex.Store({
  modules: {}
})
export default store

/src/view/index.vue

<template>
<div>
  <h1>{ msg }</h1>
</div>
</template>
<script>
import loader from './../../../router/loader'
export default {
  name: 'index',
  data () {
    return {
      msg: 'This is index'
    }
  },
  created () {
      console.log('This is index')
  }
}
</script>

/src/App.vue

<template>
  <div id="app">
    <router-link :to="'index'">index</router-link>
    <router-view></router-view>
  </div>
</template>

<script>
export default {
  name: 'app',
  mounted () {
    console.log('Hello App')
  }
}
</script>