Nextjs中.mdx扩展名文件的Typescript显示错误

nzk0hqpo 于 2023-05-06 发布在 TypeScript

关注(0)|答案(3)|浏览(147)

它可以很好地渲染组件到网站，但输入mdx文件时显示错误。
输入错误信息：找不到模块“@/articles/good.mdx”或其对应的类型声明。
我在stack overflow中发现了大量的注解。但它仍然没有解决这个问题。尝试安装 @mdx-js/mdx，同样不起作用。

import React from "react";

import Layout from "@/components/Layout/index";
import Good from "@/articles/good.mdx"; // this line show typescript error

const index = () => {
  return (
    <Layout>
      <Good />
    </Layout>
  );
};

export default index;

Package.json（删除了一些不相关的内容）

{
  "dependencies": {
    "@next/mdx": "^10.2.0",
    "@types/react-transition-group": "^4.4.1",
    "next": "10.1.3",
    "next-seo": "^4.24.0",
    "react": "17.0.2",
    "react-dom": "17.0.2",
    "react-query": "^3.13.11",
    "react-transition-group": "^4.4.1"
  },
  "devDependencies": {
    "@mdx-js/loader": "^1.6.22",
    "@types/node": "^15.0.1",
    "@types/react": "^17.0.4",
    "@types/webpack-env": "^1.16.0",
    "autoprefixer": "^10.2.5",
    "typescript": "^4.2.4"
  }
}

tsconfig.json（删除了一些无关的内容）

{
  "compilerOptions": {
    "target": "es5",
    "lib": [
      "dom",
      "dom.iterable",
      "esnext"
    ],
    "allowJs": true,
    "skipLibCheck": true,
    "strict": false,
    "forceConsistentCasingInFileNames": true,
    "noEmit": true,
    "esModuleInterop": true,
    "module": "esnext",
    "moduleResolution": "node",
    "resolveJsonModule": true,
    "isolatedModules": true,
    "jsx": "preserve",
    "types": [
      "node",
      "webpack-env"
     ]
  },
  "include": [
    "next-env.d.ts",
    "**/*.ts",
    "**/*.tsx",
    "**/*.mdx",
  ],
  "exclude": [
    "node_modules"
  ]
}

next.js

来源：https://stackoverflow.com/questions/67364073/typescript-show-error-for-mdx-extension-file-in-nextjs

3条答案

按热度按时间

xghobddn1#

要解决此问题，请创建一个名为mdx.d.ts的文件，并将其放置在项目的根目录或根目录下的types文件夹中，然后粘贴以下代码：

declare module '*.mdx' {
  let MDXComponent: (props: any) => JSX.Element;
  export default MDXComponent;
}

这定义了.mdx文件的全局类型，并告诉typescript从.mdx文件默认导入返回(props: any) => JSX.Element，这使得在.tsx文件中使用<YourMdxComponent />是安全的。

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5tmbdcev2#

mdxjs现在支持类型

npm install @types/mdx --save-dev

赞(0）回复(0）举报 2023-05-06

gv8xihay3#

更方便的方法是安装类型yarn add @types/mdx。然后将这些类型包含在tsconfig.ts中

{
  "compilerOptions": {
    "target": "es5",
    "lib": [
      "dom",
      "dom.iterable",
      "esnext"
    ],
    "allowJs": true,
    "skipLibCheck": true,
    "strict": false,
    "forceConsistentCasingInFileNames": true,
    "noEmit": true,
    "esModuleInterop": true,
    "module": "esnext",
    "moduleResolution": "node",
    "resolveJsonModule": true,
    "isolatedModules": true,
    "jsx": "preserve",
    "types": [
      "node",
      "webpack-env", 
      "mdx"
     ]
  },
  "include": [
    "next-env.d.ts",
    "**/*.ts",
    "**/*.tsx",
    "**/*.mdx",
  ],
  "exclude": [
    "node_modules"
  ]
}

如果要从mdx文件（如
import YourMdxContent, { SomeComponent } from './YourMdxFile.mdx'
你会得到一个错误：
Module '"*.mdx"' has no exported member 'SomeComponent'. Did you mean to use 'import SomeComponent from "*.mdx"' instead?
如果发生这种情况，您需要重新声明mdx模块：

declare module '*.mdx' {
  export function SomeComponent(): JSX.Element;
}

不需要重新声明MDXContent，因为它已经从types继承。

赞(0）回复(0）举报 2023-05-06

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Nextjs中.mdx扩展名文件的Typescript显示错误

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