Error: Avoided redundant navigation to current location: "/X".

解决：在router文件夹下的index.js中加入代码：

import Vue from 'vue'
import Router from 'vue-router'
import Chat from '../components/Chat.vue'
import User from '../components/User.vue'
import Find from '../components/Find.vue'
import My from '../components/My.vue'

Vue.use(Router)

export default new Router({
  routes: [
    {
      path: '/',
      component: Chat
    },
    {
      path: '/User',
      component: User
    },
    {
      path: '/Find',
      component: Find
    },
    {
      path: '/My',
      component: My
    }
  ]
})

// 解决报错的代码
const originalPush = Router.prototype.push
Router.prototype.push = function push(location) {
    return originalPush.call(this, location).catch(err => err)
}