Failing with Error: No Next.js version could be detected in your project. Make sure "next" is installed in "dependencies" or "devDependencies" error

[nikitavoloboev]

On this project and this commit it fails build with:

I don't get why as previous builds worked. I moved the looking-back.mdx into looking-back/index.mdx and that seemed to have broken it.

[fuma-nama]

Probably a vercel problem, cannot help with this