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Invalid Redirect `getStaticProps` / `getServerSideProps`

Why This Error Occurred​

The redirect value returned from your getStaticProps or getServerSideProps function had invalid values.

Possible Ways to Fix It​

Make sure you return the proper values for the redirect value.

import type { InferGetStaticPropsType, GetStaticProps } from 'next'

type Repo = {
  name: string
  stargazers_count: number
}

export const getStaticProps = (async (context) => {
  const res = await fetch('https://api.github.com/repos/vercel/next.js')
  const repo = await res.json()

  if (!repo) {
    return {
      redirect: {
        permanent: false, // or true
        destination: '/404',
      },
    }
  }

  return { props: { repo } }
}) satisfies GetStaticProps<{
  repo: Repo
}>

export default function Page({
  repo,
}: InferGetStaticPropsType<typeof getStaticProps>) {
  return repo.stargazers_count
}
export async function getStaticPaths() {
  const res = await fetch('https://api.github.com/repos/vercel/next.js')
  const repo = await res.json()

  if (!repo) {
    return {
      redirect: {
        permanent: false, // or true
        destination: '/404',
      },
    }
  }

  return { props: { repo } }
}

export default function Page({ repo }) {
  return repo.stargazers_count
}