如何解决下一个 js:元素类型无效:预期为字符串对于内置组件或类/函数对于复合组件但得到:未定义
我正在使用 next js
并且我想在我的项目中导入富文本编辑器,但是当我尝试导入 react-draft-wysiwyg
时显示如下错误:
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. Invariant Violation: 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.
at C:\Users\alami\OneDrive\Desktop\SEO blog\frontend\node_modules\react-dom\cjs\react-dom-server.node.development.js:3736:30
at ReactDOMServerRenderer.render (C:\Users\alami\OneDrive\Desktop\SEO blog\frontend\node_modules\react-dom\cjs\react-dom-server.node.development.js:3739:9)
at ReactDOMServerRenderer.read (C:\Users\alami\OneDrive\Desktop\SEO blog\frontend\node_modules\react-dom\cjs\react-dom-server.node.development.js:3395:29)
at renderToString (C:\Users\alami\OneDrive\Desktop\SEO blog\frontend\node_modules\react-dom\cjs\react-dom-server.node.development.js:3954:27)
at render (C:\Users\alami\OneDrive\Desktop\SEO blog\frontend\node_modules\next-server\dist\server\render.js:79:16)
at renderPage (C:\Users\alami\OneDrive\Desktop\SEO blog\frontend\node_modules\next-server\dist\server\render.js:255:20)
at C:\Users\alami\OneDrive\Desktop\SEO blog\frontend\.next\server\static\development\pages\_document.js:437:17
at Generator.next (<anonymous>)
at asyncGeneratorStep (C:\Users\alami\OneDrive\Desktop\SEO blog\frontend\.next\server\static\development\pages\_document.js:206:24)
at _next (C:\Users\alami\OneDrive\Desktop\SEO blog\frontend\.next\server\static\development\pages\_document.js:228:9)
at C:\Users\alami\OneDrive\Desktop\SEO blog\frontend\.next\server\static\development\pages\_document.js:235:7
at new Promise (<anonymous>)
at new F (C:\Users\alami\OneDrive\Desktop\SEO blog\frontend\node_modules\core-js\library\modules\_export.js:36:28)
at C:\Users\alami\OneDrive\Desktop\SEO blog\frontend\.next\server\static\development\pages\_document.js:224:12
at Function.getinitialProps (C:\Users\alami\OneDrive\Desktop\SEO blog\frontend\.next\server\static\development\pages\_document.js:445:7)
at Object.loadGetinitialProps (C:\Users\alami\OneDrive\Desktop\SEO blog\frontend\node_modules\next-server\dist\lib\utils.js:50:35)
但是如果我在 create-react-app
中导入相同的编辑器,那么它工作正常,我不知道为什么不能在我的 next js
项目中工作。
我在 next js
中尝试过这样的代码:
import React,{ useState } from "react";
import { EditorState,convertToRaw } from "draft-js";
//import { Editor } from "react-draft-wysiwyg";
import dynamic from "next/dynamic";
const { Editor } = dynamic(() => import("react-draft-wysiwyg"),{ ssr: false });
import draftToHtml from "draftjs-to-html";
import "../../node_modules/react-draft-wysiwyg/dist/react-draft-wysiwyg.css";
// import htmlToDraft from "html-to-draftjs";
const BlogCreate = () => {
const [state,setState] = useState({
editorState: EditorState.createEmpty(),});
const onEditorStateChange = (editorState) => {
setState({
editorState,});
};
const { editorState } = state;
return (
<div>
<Editor
editorState={editorState}
wrapperClassName="demo-wrapper"
editorClassName="demo-editor"
onEditorStateChange={onEditorStateChange}
placeholder="write something..."
/>
<textarea
disabled
value={draftToHtml(convertToRaw(editorState.getCurrentContent()))}
/>
</div>
);
};
export default BlogCreate;
请提出任何建议。
解决方法
不要解构next/dynamic
改变这一行
const { Editor } = dynamic(() => import("react-draft-wysiwyg"),{ ssr: false });
由
const Editor = dynamic(() => import("react-draft-wysiwyg").then(mod => mod.Editor),{ ssr: false });
版权声明:本文内容由互联网用户自发贡献,该文观点与技术仅代表作者本人。本站仅提供信息存储空间服务,不拥有所有权,不承担相关法律责任。如发现本站有涉嫌侵权/违法违规的内容, 请发送邮件至 dio@foxmail.com 举报,一经查实,本站将立刻删除。