---
title: Missing Document Components
---
## Why This Error Occurred
In your custom `pages/_document` an expected sub-component was not rendered.
## Possible Ways to Fix It
Make sure to import and render all of the expected `Document` components:
- `
`
- `
)
}
}
```
## Useful Links
- [Custom Document Docs](/docs/pages/building-your-application/routing/custom-document)
`
- ``
- ``
For example:
```tsx filename="pages/_document.tsx"
import Document, { Html, Head, Main, NextScript } from 'next/document'
export default class MyDocument extends Document {
render() {
return (