Error in v-on handler: "TypeError: Cannot read properties of undefined (reading 'push')"

使用vue-router出现报错: Error in v-on handler: "TypeError: Cannot read properties of undefined (reading 'push')" 、 Cannot read properties of undefined (reading 'push')

router的 index.js

import Vue from 'vue'
import VueRouter from './router'
Vue.use(VueRouter)

const routes = [
  {
    path: '/',
    name: 'Main',
    component: () => import('../views/Main.vue'),
    children: [
      {
        path: '/home',
        name: 'home',
        component: () => import('../views/Home')
      },
      {
        path: '/user',
        name: 'user',
        component: () => import('../views/User')
      }
    ]
  }
]

new VueRouter({
  model: 'history',
  routes
})

export default routes

CommonAside.vue

<template>
  <el-menu
    default-active="1-4-1"
    class="el-menu-vertical-demo"
    @open="handleOpen"
    @close="handleClose"
    :collapse="isCollapse"
    background-color="#545c64"
    text-color="#fff"
    active-text-color="#ffd04b"
  >
    <h3>通用后台管理系统h3>
    <el-menu-item
      v-for="item in noChildren"
      :index="item.path + ''"
      :key="item.path"
      @click="clickMenu(item)"
    >
      <i :class="'el-icon-' + item.icon">i>
      <span slot="title">{{ item.label }}span>
    el-menu-item>

    <el-submenu
      v-for="item in hasChildren"
      :index="item.path + ''"
      :key="item.path"
    >
      <template slot="title">
        <i :class="'el-icon-' + item.icon">i>
        <span slot="title">{{ item.label }}span>
      template>
      <el-menu-item-group
        v-for="(subItem, subIndex) in item.children"
        :key="subItem.path"
      >
        <el-menu-item :index="subIndex + ''">{{ subItem.label }}el-menu-item>
      el-menu-item-group>
    el-submenu>
  el-menu>
template>

<script>
export default {
  name: 'CommonAside',
  data() {
    return {
      isCollapse: false,
      menu: [
        {
          path: '/',
          name: 'home',
          label: '首页',
          icon: 's-home',
          url: 'Home/Home'
        },
        {
          path: '/user',
          name: 'user',
          label: '用户管理',
          icon: 'user',
          url: 'UserManage/UserManage'
        },
        {
          label: '其他',
          icon: 'location',
          path: 'other',
          children: [
            {
              path: '/page1',
              name: 'page1',
              label: '页面1',
              icon: 'video-play',
              url: 'Other/PageOne'
            },
            {
              path: '/page2',
              name: 'page2',
              label: '页面2',
              icon: 'seting',
              url: 'Other/PageTwo'
            }
          ]
        }
      ]
    }
  },
  methods: {
    handleOpen(key, keyPath) {
      console.log(key, keyPath)
    },
    handleClose(key, keyPath) {
      console.log(key, keyPath)
    },
    clickMenu(item) {
      this.$router.push({
        name: item.name + ''
      })
    }
  },
  computed: {
    noChildren() {
      return this.menu.filter((item) => !item.children)
    },
    hasChildren() {
      return this.menu.filter((item) => item.children)
    }
  }
}
script>

<style lang="less" scoped>
.el-menu-vertical-demo:not(.el-menu--collapse) {
  width: 200px;
  min-height: 400px;
}

.el-menu {
  height: 100%;
  border: none;
  h3 {
    color: #fff;
    text-align: center;
    line-height: 48px;
  }
}

.el-container {
  height: 100vh;
}
style>

运行结果及报错内容

首先import VueRouter from './router'这里没报错吗？应该是import VueRouter from 'vue-router'吧，安装vue-router包了吗？
打印this.$router看有值吗

你在menu.vue 搜一下push，看看是没有取到值还是这个方法需要一个变量接收

检查一下点击路由跳转的方法
this.$router.push({name:item.name})

import VueRouter from './router' 替换成 import VueRouter from 'vue-router'

你可以参考下这篇文章：Error in v-on handler: "TypeError: Cannot read property 'value' of undefined"

把Vue.use(VueRouter)放到new VueRouter()下面