javascript - 为什么 Form.Select 在我的简单 react-bootstrap 应用程序中没有被识别，遵循 react-bootstrap 文档？

Question

我是一个“带钩子(Hook)的 react Bootstrap ”的初学者，我正在创建一个简单的表单。我正在关注 react-bootstrap 文档的示例，但我遇到了选择/选项表单元素的问题。常规文本输入字段正常呈现，没有错误。选择语句似乎把事情搞砸了。
这是我的代码:

import { Form, Button } from "react-bootstrap";

export default function FormComponentName(props) {
    return (
        <>
            <h1>Search Form</h1>

            <Form>

                <Form.Group className="mb-3" controlId="searchState">
                    <Form.Label>State</Form.Label>
                    <Form.Select defaultValue="State...">
                        <option>State...</option>
                        <option value="1">One</option>
                        <option value="2">Two</option>
                        <option value="3">Three</option>
                    </Form.Select>
                </Form.Group>
               <Button variant="primary" type="submit">
                    Search Data
                </Button>

            </Form>


        </>
    )

}

这是 yarn 错误消息:

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 `FormComponentName`.

从控制台:

index.js:1 Warning: React.jsx: 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 your code at FormComponentName.js:14.
    at FormComponentName

我需要安装一个额外的模块，还是更明显的？

Answer 1

而不是 Form.Select ， 您可以使用:

<Form.Control as="select">...</Form.Control>