react router v6报错 useRoutes() may be used only in the context of a ＜Router＞ component.

在使用react router v6版本的时候，按照之前的方法使用

src/main.tsx 是这样的，几乎不动

import * as React from "react";
import * as ReactDOM from "react-dom/client";
import "~/assets/index.css";

import App from "~/App.tsx";

ReactDOM.createRoot(document.getElementById("root")!).render(
    <React.StrictMode>
        <App />
     </React.StrictMode>,
 );

然后，路由

src/router/index.tsx

const router = [
    {
        path: "/",
        element: <div>Home</div>,
    },
    {
        path: "/about",
        element: <div>About</div>,
    },
];

export default router;

在APP组件 src/App.tsx 中使用路由

import "./assets/App.css";
import { Button, Divider, Flex } from "antd";
import { Link, useRoutes } from "react-router-dom";

import router from "~/router";

const App = () => {
    const route = useRoutes(router);
    return (
        <>
            <Flex gap="small" align="flex-start" vertical={false}>
                <Button type="primary">
                    <Link to="/">首页</Link>
                </Button>
                <Button type="primary">
                    <Link to="/about">关于</Link>
                </Button>
            </Flex>
            <Divider orientation="left">正文</Divider>
            <div>{route}</div>
        </>
    );
};

export default App;

此时，就会报错 Uncaught Error: useRoutes() may be used only in the context of a <Router> component.

查看文档，发现需要使用一个Router包一下

无论是 BrowserRouter 还是 HashRouter 亦或是其他什么 Router

然后我修改了下APP组件

import "./assets/App.css";
import { Button, Divider, Flex } from "antd";
import { BrowserRouter, Link, useRoutes } from "react-router-dom";

import router from "~/router";

const App = () => {
    const route = useRoutes(router);
    return (
        <BrowserRouter>
            <Flex gap="small" align="flex-start" vertical={false}>
                <Button type="primary">
                    <Link to="/">首页</Link>
                </Button>
                <Button type="primary">
                    <Link to="/about">关于</Link>
                </Button>
            </Flex>
            <Divider orientation="left">正文</Divider>
            <div>{route}</div>
        <BrowserRouter/>
    );
};

export default App;

但是问题还是没解决

最后发现，原来是要在最上层包

要修改 src/main.tsx 文件

import * as React from "react";
import * as ReactDOM from "react-dom/client";
import "~/assets/index.css";
import { BrowserRouter } from "react-router-dom";

import App from "~/App.tsx";

ReactDOM.createRoot(document.getElementById("root")!).render(
    <React.StrictMode>
        <BrowserRouter>
            <App />
        </BrowserRouter>
     </React.StrictMode>,
 );

然后后面的就不需要包了

所以APP组件就可以恢复成原来的样子

import "./assets/App.css";
import { Button, Divider, Flex } from "antd";
import { Link, useRoutes } from "react-router-dom";

import router from "~/router";

const App = () => {
    const route = useRoutes(router);
    return (
        <>
            <Flex gap="small" align="flex-start" vertical={false}>
                <Button type="primary">
                    <Link to="/">首页</Link>
                </Button>
                <Button type="primary">
                    <Link to="/about">关于</Link>
                </Button>
            </Flex>
            <Divider orientation="left">正文</Divider>
            <div>{route}</div>
        </>
    );
};

export default App;

然后就不会报错了