Having trouble compiling MDX files that include React Components?

Question

Having trouble compiling MDX files that include React Components?

I have implemented NextJS and MDX using next-mdx-remote to retrieve my data, and it's working successfully. However, I encounter an error whenever I try to import React components:

Error: Expected component CodeBlock to be defined: you likely forgot to import, pass, or provide it. It’s referenced in your code at 317:1-317:24

In summary:

This Works -

---
title: 'First Blog Post'
author: 'Me'
publishDate: 'Nov 4th, 2023'
---

# This is our first post

Here is a regular paragraph

here is a list:

- Item one
- Item two
- Item three

## This is an h2 element

This Does Not -

---
title: 'First Blog Post'
author: 'Me'
publishDate: 'Nov 4th, 2023'
---

# This is our first post

Here is a regular paragraph

here is a list:

- Item one
- Item two
- Item three

<CodeBlock></CodeBlock>

## This is an h2 element

Here are the relevant files:

index.js for MDX

https://pastebin.com/5ZmCDtkf

articles/[slug]/page.js

https://pastebin.com/X0tGqsip

package.json

https://pastebin.com/iNCywNfK

Updated:

mdx-components.js

https://pastebin.com/U8Bn739q

next.js next.js13 mdxjs

Answer 1

Answer №1

It seems that there is a minor error in your index.js file for MDX. When calling the compileMDX function, components should not be enclosed in extra curly braces:

const { frontmatter, content } = await compileMDX({
    source: fileContent,
    options: { parseFrontmatter: true },
    components: components // <--- remove the curly braces
})

Complete code snippet:

import fs from 'fs'
import path from 'path'
import { compileMDX } from 'next-mdx-remote/rsc'
import CodeBlock from "../../app/elements/CodeBlock";
import InfoPanel from "../../app/elements/InfoPanel";
 
const rootDirectory = path.join(process.cwd(), 'src/app', 'mdx-pages')
 
const components = {
  // Add component definitions here
  CodeBlock,
  InfoPanel,
};
 
 
export const getPostBySlug = async slug => {
  var realSlug = slug.replace(/\.mdx$/, '')
  const filePath = path.join(rootDirectory, `${realSlug}.mdx`)
 
  const fileContent = fs.readFileSync(filePath, { encoding: 'utf8' })
 
  const { frontmatter, content } = await compileMDX({
    source: fileContent,
    options: { parseFrontmatter: true },
    components: components // <--- remove the curly braces
  })
 
  return { meta: { ...frontmatter, slug: realSlug }, content }
}
 
export const getAllPostsMeta = async () => {
  const files = fs.readdirSync(rootDirectory)
 
  let posts = []
 
  for (const file of files) {
    const { meta } = await getPostBySlug(file)
    posts.push(meta)
  }
 
  return posts
}

Answer 2

It seems that there is a minor error in your index.js file for MDX. When calling the compileMDX function, components should not be enclosed in extra curly braces:

const { frontmatter, content } = await compileMDX({
    source: fileContent,
    options: { parseFrontmatter: true },
    components: components // <--- remove the curly braces
})

Complete code snippet:

import fs from 'fs'
import path from 'path'
import { compileMDX } from 'next-mdx-remote/rsc'
import CodeBlock from "../../app/elements/CodeBlock";
import InfoPanel from "../../app/elements/InfoPanel";
 
const rootDirectory = path.join(process.cwd(), 'src/app', 'mdx-pages')
 
const components = {
  // Add component definitions here
  CodeBlock,
  InfoPanel,
};
 
 
export const getPostBySlug = async slug => {
  var realSlug = slug.replace(/\.mdx$/, '')
  const filePath = path.join(rootDirectory, `${realSlug}.mdx`)
 
  const fileContent = fs.readFileSync(filePath, { encoding: 'utf8' })
 
  const { frontmatter, content } = await compileMDX({
    source: fileContent,
    options: { parseFrontmatter: true },
    components: components // <--- remove the curly braces
  })
 
  return { meta: { ...frontmatter, slug: realSlug }, content }
}
 
export const getAllPostsMeta = async () => {
  const files = fs.readdirSync(rootDirectory)
 
  let posts = []
 
  for (const file of files) {
    const { meta } = await getPostBySlug(file)
    posts.push(meta)
  }
 
  return posts
}

Answer 3

Answer №2

Based on the information found in the next-mdx-remote documentation mentioned here:

The document states that import and export statements are not allowed within an MDX file. To incorporate components into MDX files, they must be passed as a prop to <MDXRemote />.

It appears that this approach is taken because next-mdx-remote is designed to fetch content from anywhere rather than just local sources, hence local imports are not directly supported.

Answer 4

Based on the information found in the next-mdx-remote documentation mentioned here:

The document states that import and export statements are not allowed within an MDX file. To incorporate components into MDX files, they must be passed as a prop to <MDXRemote />.

It appears that this approach is taken because next-mdx-remote is designed to fetch content from anywhere rather than just local sources, hence local imports are not directly supported.

Having trouble compiling MDX files that include React Components?

Answer №1

Answer №2

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