Vue.js Vue3在'vuerouter'中找不到导出'createWebHistory，createRouter'

我正在创建一个Vue3应用程序，在添加路由后，我的第一个页面正在加载，但它完全是空白的.

我收到以下消息

错误:未捕获类型错误:对象(…)这不是一个函数

在控制台中:

警告/src/路由/索引.未找到js"导出'createRouter'

警告/src/路由/索引.js"导出'createWebHistory'未被删除"

路由-&gt；指数js

import { createWebHistory, createRouter } from "vue-router";
...

const routes = [{
        path: "/user/create",
        name: "createUser",
        component: createUser,
    },
    {
        path: "/users",
        name: "listUser",
        component: listUser,
        meta: { requiresAuth: true }
    },
    {
        path: "/user/show/:id",
        name: "showUser",
        component: showUser,
        meta: { requiresAuth: true }
    },
    {
        path: "/user/update/:id",
        name: "updateUser",
        component: updateUser,
    },
    {
        path: "/login",
        name: "login",
        component: Login
    },
    {
        path: "/register",
        name: "register",
        component: Register
    },
    {
        path: "/users/bearer",
        name: "bearer",
        component: bearer,
        meta: { requiresAuth: true }
    }

]

const router = createRouter({
    history: createWebHistory(),
    routes,
});

router.beforeEach((to, from, next) => {
    const requiresAuth = to.matched.some(record => record.meta.requiresAuth);
    const isAuthenticated = firebase.auth().currentUser;
    console.log("isauthenticated", isAuthenticated);
    if (requiresAuth && !isAuthenticated) {
        next("/login");
    } else {
        next();
    }
});

export default router;