我也不明白为什么会报这个错误，把关于ts的代码改成js的就可以了。。

 ERROR in ./src/views/Home.vue?vue&type=script&lang=ts&setup=true (./node_modules/vue-loader/dist/index.js??ruleSet[0].use[0]!./src/views/Home.vue?vue&type=script&lang=ts&setup=true) 17:23 Module parse failed: Unexpected token (17:23) File was processed with these loaders: * ./node_modules/vue-loader/dist/index.js You may need an additional loader to handle the result of these loaders. | | const isCollapse = ref(true) > const handleOpen = (key: string, keyPath: string[]) => { | console.log(key, keyPath) | } ERROR in ./src/views/Home.vue?vue&type=template&id=fae5bece&ts=true (./node_modules/vue-loader/dist/templateLoader.js??ruleSet[1].rules[3]!./node_modules/vue-loader/dist/index.js??ruleSet[0].use[0]!./src/views/Home.vue?vue&type=template&id=fae5bece&ts=true) 7:27 Module parse failed: Unexpected token (7:27) File was processed with these loaders: * ./node_modules/vue-loader/dist/templateLoader.js * ./node_modules/vue-loader/dist/index.js You may need an additional loader to handle the result of these loaders. | const _hoisted_3 = /*#__PURE__*/_createElementVNode("span", null, "item four", -1 /* HOISTED */) | > export function render(_ctx: any,_cache: any,$props: any,$setup: any,$data: any,$options: any) { | const _component_el_radio_button = _resolveComponent("el-radio-button")! | const _component_el_radio_group = _resolveComponent("el-radio-group")! ERROR [eslint] C:\Users\xin\Desktop\exampro\src\views\Home.vue 56:23 error Parsing error: Unexpected token :

 

 

<template>
  <el-radio-group v-model="isCollapse" style="margin-bottom: 20px">
    <el-radio-button :label="false">expand</el-radio-button>
    <el-radio-button :label="true">collapse</el-radio-button>
  </el-radio-group>
  <el-menu
      default-active="2"
      class="el-menu-vertical-demo"
      :collapse="isCollapse"
      @open="handleOpen"
      @close="handleClose"
  >
    <el-sub-menu index="1">
      <template #title>
        <el-icon><location /></el-icon>
        <span>Navigator One</span>
      </template>
      <el-menu-item-group>
        <template #title><span>Group One</span></template>
        <el-menu-item index="1-1">item one</el-menu-item>
        <el-menu-item index="1-2">item two</el-menu-item>
      </el-menu-item-group>
      <el-menu-item-group title="Group Two">
        <el-menu-item index="1-3">item three</el-menu-item>
      </el-menu-item-group>
      <el-sub-menu index="1-4">
        <template #title><span>item four</span></template>
        <el-menu-item index="1-4-1">item one</el-menu-item>
      </el-sub-menu>
    </el-sub-menu>
    <el-menu-item index="2">
      <el-icon><icon-menu /></el-icon>
      <template #title>Navigator Two</template>
    </el-menu-item>
    <el-menu-item index="3" disabled>
      <el-icon><document /></el-icon>
      <template #title>Navigator Three</template>
    </el-menu-item>
    <el-menu-item index="4">
      <el-icon><setting /></el-icon>
      <template #title>Navigator Four</template>
    </el-menu-item>
  </el-menu>
</template>

<script setup>
import { ref } from 'vue'
import {
  Document,
  Menu as IconMenu,
  Location,
  Setting,
} from '@element-plus/icons-vue'

const isCollapse = ref(true)
const handleOpen = (key, keyPath) => {
  console.log(key, keyPath)
}
const handleClose = (key, keyPath) => {
  console.log(key, keyPath)
}
</script>


<style>
.el-menu-vertical-demo:not(.el-menu--collapse) {
  width: 200px;
  min-height: 400px;
}
</style>