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`getInitialProps` was defined as an instance method

errors/get-initial-props-as-an-instance-method.mdx

16.2.5658 B
Original Source

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.

jsx
export default class YourEntryComponent extends React.Component {
  static getInitialProps() {
    return {}
  }

  render() {
    return 'foo'
  }
}

or

jsx
const YourEntryComponent = function () {
  return 'foo'
}

YourEntryComponent.getInitialProps = () => {
  return {}
}

export default YourEntryComponent