我正在尝试将 react-bootstrap 与 Bootstrap 5 一起使用。我想在我的一个页面中使用 Accordion。为此，我只是从这个页面复制了结构-> https://react-bootstrap.netlify.app/components/accordion/。但是当我打开页面时，浏览器显示此错误-

Error: Element type is invalid: expected a string (for built-in components) or a class/function (for composite components) but got: undefined. You likely forgot to export your component from the file it's defined in, or you might have mixed up default and named imports.

Check the render method of `Questions`.

这是我使用此组件的代码

import Accordion from 'react-bootstrap/Accordion';

const Questions = () => (
    <Accordion defaultActiveKey="0" flush>
        <Accordion.Item eventKey="0">
            <Accordion.Header>Question #1</Accordion.Header>
            <Accordion.Body>
                Answer to the Question #1
            </Accordion.Body>
        </Accordion.Item>
        <Accordion.Item eventKey="1">
            <Accordion.Header>Question #2</Accordion.Header>
            <Accordion.Body>
                Answer to the Question #2
            </Accordion.Body>
        </Accordion.Item>
    </Accordion>
);


export default Questions;

其他详情：

1. “引导程序”：“^5.0.2”
2. “react”：“^17.0.2”
3. “react引导”：“^1.6.1”

导入/导出组件时我错过了什么吗？TIA。