Astro couldn't find the correct page to render

FailedToFindPageMapSSR: Astro couldn’t find the correct page to render, probably because it wasn’t correctly mapped for SSR usage. This is an internal error. Please file an issue.

What went wrong?

Section titled What went wrong?

Astro couldn’t find the correct page to render, probably because it wasn’t correctly mapped for SSR usage. This is an internal error.