[2376] TypeError Cannot read property 'name' of undefined??????

when axios,it error! Error tips: [Vue warn]: Invalid prop: type check failed for prop "to". Expected String, Object, got Undefined. so,I doubt the reason is 'nuxt-link',on it exits "to",hower,I don't know how to do it! who can help me,please!

And my code as follow:

<template>
  <div class="layout">
    <div class="waiting" :class="{waited: staticD.wait}">
      <div class="letter-holder">
        <div class="l-1 letter">V</div>
        <div class="l-2 letter">O</div>
        <div class="l-3 letter">G</div>
        <div class="l-4 letter">L</div>
        <div class="l-5 letter">A</div>
        <div class="l-6 letter">S</div>
        <div class="l-7 letter">S</div>
        <div class="l-8 letter">&nbsp;</div>
        <div class="l-9 letter">V</div>
        <div class="l-10 letter">I</div>
        <div class="l-11 letter">L</div>
        <div class="l-12 letter">L</div>
        <div class="l-13 letter">A</div>
        <div class="l-14 letter">&nbsp;</div>
        <div class="l-15 letter">D</div>
        <div class="l-16 letter">C</div>
        <div class="l-17 letter">.</div>
        <div class="l-18 letter">.</div>
        <div class="l-19 letter">.</div>
      </div>
    </div>
    <header class="header">
      <div class="logo"><nuxt-link :to="dynamicD.rootdir"><img :src="dynamicD.logosrc"></nuxt-link></div>
        <ul class="nav">
          <li v-for="(val, idx) in dynamicD.nav"><nuxt-link :to="{path: val.curpath}" :class="{a_on: dynamicD.curpath === val.curpath ? true : false}" exact>{{ val.txt }}</nuxt-link></li>
        </ul>
        <div class="tel" :style="{'background-image': 'url('+dynamicD.telimg+')'}">{{dynamicD.tel}}</div>
    </header>
    <nuxt/>
    <div class="rfloat">
        <div class="gotop" :class="staticD.fade" @click="gotop()">
            <img :src="dynamicD.gotopimg">
        </div>
    </div>
  </div>
</template>

<script>
  import axios from 'axios'
  export default {
    data () {
      return {
        staticD: { // 静态数据
          wait: false,
          fade: ''
        },
        dynamicD: { // 动态请求数据
          // 'curpath': '/',
          // 'gotopimg': '/img/i-top.png',
          // 'logosrc': '/img/logo.png',
          // 'nav': [
          //   { 'curpath': '/', 'txt': '首页' },
          //   { 'curpath': '/cases', 'txt': '案例' },
          //   { 'curpath': '/designers', 'txt': '设计师' },
          //   { 'curpath': '/properties', 'txt': '热装楼盘' },
          //   { 'curpath': '/constructions', 'txt': '在施工地' },
          //   { 'curpath': '/embodiments', 'txt': '别墅实施' },
          //   { 'curpath': '/furnishings', 'txt': '别墅软装' },
          //   { 'curpath': '/villas', 'txt': '出版刊物' },
          //   { 'curpath': '/about', 'txt': '关于' }
          // ],
          // 'rootdir': '/',
          // 'tel': '400-001-5820',
          // 'telimg': '/img/tel.png'
        }
      }
    },
    created () {
      this.fetchData()
    },
    beforeMount () {
      this.init(window, document)
      this.pathfn() // 渲染dom前调用导航定位
    },
    mounted () {
      // this.fetchData()
      // console.log(this.$route)
      this.$nextTick(function () {
        this.staticD.wait = true
      })
      this.handleScroll()
      window.addEventListener('scroll', this.handleScroll)
    },
    beforeUpdate () {
      // console.log(this.$route)
      this.pathfn() // 路由切换调用导航定位
    },
    destroyed () {
      window.removeEventListener('scroll', this.handleScroll)
    },
    watch: {
    },
    methods: {
      fetchData: function () {
        let that = this
        axios.post('http://rap.taobao.org/mockjsdata/30077/api/default')
          .then(function (res) {
            console.log(res.data)
            that.dynamicD = Object.create(res.data)
          })
          .catch(function (err) {
            console.log(err)
          })
      },
      init: function (win, doc) { // 自适应
        function setFontSize () {
          // 获取window 宽度
          // zepto实现 $(window).width()就是这么干的
          var winWidth = (window.innerWidth / 1920) * 100
          winWidth = winWidth > 100 ? 100 : winWidth
          doc.documentElement.style.fontSize = winWidth + 'px'
        }
        var evt = 'onorientationchange' in win ? 'orientationchange' : 'resize'
        var timer = null

        win.addEventListener(evt, function () {
          clearTimeout(timer)
          timer = setTimeout(setFontSize, 300)
        }, false)

        win.addEventListener('pageshow', function (e) {
          if (e.persisted) {
            clearTimeout(timer)
            timer = setTimeout(setFontSize, 300)
          }
        }, false)
        // 初始化
        setFontSize()
      },
      pathfn: function () { // 导航定位
        let reg = this.$route.path.lastIndexOf('/') === 0 ? /^(\/\w*$)/g : /^(\/\w+\/)/g
        let aPath = this.$route.path.match(reg)[0]
        this.dynamicD.curpath = aPath === '/' ? '/' : aPath.replace(/\/$/g, '')
        // console.log(reg, this.$route)
        // console.log(this.curpath)
      },
      gotop: function () { // 点击回到顶部
        let timer = null
        let oTop
        let eleSec = document.documentElement
        cancelAnimationFrame(timer)
        timer = requestAnimationFrame(function fn () {
          oTop = eleSec.scrollTop
          // console.log(oTop)
          let speed = Math.ceil(oTop / 9)
          if (oTop > 0) {
            eleSec.scrollTop = oTop - speed
            timer = requestAnimationFrame(fn)
            // console.log(1)
            eleSec.ontouchstart = function () {
              // console.log(1)
              cancelAnimationFrame(timer)
            }
          } else {
            cancelAnimationFrame(timer)
          }
        })
      },
      handleScroll: function () { // 滚动到底部显示回到顶部按钮
        let oTop
        let dVal
        let scroH = document.documentElement.scrollHeight
        oTop = document.documentElement.scrollTop
        dVal = scroH - oTop - document.documentElement.clientHeight
        if (dVal > 500) {
          this.staticD.fade = 'fadeout'
        } else {
          this.staticD.fade = 'fadein'
        }
      }
    }
  }
</script>

<style>
/**
 * header
 */
.header{
  height: 1rem;
  position: fixed;
  top: 0;
  left: 0;
  width: 100%;
  z-index: 10;
  background: rgba(243, 241, 239, 0.8);
}
.header .logo{
  height: 100%;
  display: inline-block;
  padding: .2rem 0;
  margin-left: 1.3rem;
}
.header .logo img{
  height: 100%;
  width: auto;
}

.header ul,
.header li,
.header .tel{
  display: inline-block;
}
.header ul{
  margin-left: 2rem;
}
.header li{
  width: 1rem;
  text-align: center;
}
.header .tel{
  margin-left: 2rem;
  padding-left: .25rem;
  font-weight: bold;
  font-size: 1.2em;
  background: url(~static/img/tel.png) left center no-repeat;
  background-size: auto 100%;
}
section{
  padding-top: 1rem;
}
.container {
  min-height: 100vh;
  display: flex;
  justify-content: center;
  align-items: center;
  text-align: center;
}

.title {
  font-family: "Quicksand", "Source Sans Pro", -apple-system, BlinkMacSystemFont, "Segoe UI", Roboto, "Helvetica Neue", Arial, sans-serif; /* 1 */
  display: block;
  font-weight: 300;
  font-size: 100px;
  color: #35495e;
  letter-spacing: 1px;
}
.links {
  padding-top: 15px;
}

/**
 * 返回顶部
 */
.rfloat {
  position: fixed;
  right: .2rem;
  bottom: 2rem;
  width: .5rem;
  z-index: 1000;
}

.rfloat .gotop {
  background: rgba(89, 87, 87, .8);
  padding: 25%;
  /*display: none;*/
  /*transform: scale(0, 0);*/
  border-radius: .1rem;
  box-shadow: 1px 1px 1px .01rem #595757;
  transition: all;
}
.rfloat .gotop:hover{
  background: rgba(215,0,15,.8);
  box-shadow: 1px 1px 1px .01rem #d33c46cc;
}
.rfloat .gotop.fadeout{
  animation: fadeout .8s;
  display: none;
}
.rfloat .gotop.fadein{
  display: block;
  animation: fadein .8s;
}
@keyframes fadeout {
  from{opacity: 1;}
  to{opacity: 0;}
}
@keyframes fadein {
  from{opacity: 0;}
  to{opacity: 1;}
}
</style>


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