rsnext/errors/get-initial-props-as-an-instance-method.mdx
Delba de Oliveira 44d1a1cb15
docs: Migrate error messages to MDX and App Router. (#52038)
This PR is part of a larger effort to migrate error messages to MDX and
use App Router: https://github.com/vercel/front/pull/23459
2023-07-05 06:11:16 -07:00

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---
title: '`getInitialProps` was defined as an instance method'
---
## Why This Error Occurred
`getInitialProps` must be a static method in order to be called by next.js.
## Possible Ways to Fix It
Use the static keyword.
```js filename="pages/example.js"
export default class YourEntryComponent extends React.Component {
static getInitialProps() {
return {}
}
render() {
return 'foo'
}
}
```
or
```js filename="pages/example.js"
const YourEntryComponent = function () {
return 'foo'
}
YourEntryComponent.getInitialProps = () => {
return {}
}
export default YourEntryComponent
```
## Useful Links
- [Fetching data and component lifecycle](/docs/pages/api-reference/functions/get-initial-props)