javascript: vue create project in WebStorm

 route/index.js

import { createRouter, createWebHistory ,createWebHashHistory} from 'vue-router'


import HomeView from '../views/HomeView.vue'
import AboutView  from "../views/AboutView.vue";

const router = createRouter({
    history: import.meta.env.DEV ? createWebHashHistory() : createWebHistory(),
    routes: [
        {
            path: '/',
            name: 'index',
            component: HomeView
        },
        {
            path: '/about',
            name: 'about',
            // route level code-splitting
            // this generates a separate chunk (About.[hash].js) for this route
            // which is lazy-loaded when the route is visited.
            component: () => import('../views/AboutView.vue')
        }
    ]
})

export default router

app.vue

<script setup>
import HelloWorld from './components/HelloWorld.vue'
//import VueRouter from 'vue-router'
import { RouterLink, RouterView } from 'vue-router'

</script>

<template>
  <header>
    <img alt="Vue logo" class="logo" src="./assets/logo.svg" width="125" height="125" />

    <div class="wrapper">
      <HelloWorld msg="You did it! Geovin Du" />
    </div>
  </header>
    <nav>
        <RouterLink to="/">Home</RouterLink>
          
        <RouterLink to="/about">About</RouterLink>
    </nav>
    <RouterView />
</template>

<style scoped>
header {
  line-height: 1.5;
}

.logo {
  display: block;
  margin: 0 auto 2rem;
}

@media (min-width: 1024px) {
  header {
    display: flex;
    place-items: center;
    padding-right: calc(var(--section-gap) / 2);
  }

  .logo {
    margin: 0 2rem 0 0;
  }

  header .wrapper {
    display: flex;
    place-items: flex-start;
    flex-wrap: wrap;
  }
}
</style>

<script setup>
import TheWelcome from '../components/TheWelcome.vue'
</script>
<template>
    <main>
        <TheWelcome />
    </main>
</template>

<script>
export default {
    name: "HomeView"
}
</script>

<template>
    <div class="about">
        <h1>This is an about page</h1>
        <p>i am geovindu</p>
    </div>
</template>

<script>
export default {
    name: "AboutView"
}
</script>

<style scoped>
@media (min-width: 1024px) {
    .about {
        min-height: 100vh;
        display: flex;
        align-items: center;
    }
}
</style>