Build Keystone inside turborepo fails

[DrBoria]

`// create turborepo
npx create-turbo@latest my-monorepo
cd my-monorepo

// add keystone to turborepo
cd apps
npm init keystone-app my-keystone-app

cd my-keystone-app
npm run build`

As I expect it should build production-ready static pages. But I'm receiving error NEXT_EXPORT_ERROR

If I move keystone outside of turborepo and install dependencies once again - it works fine. But inside - it fails.

Environment:

"@keystone-6/auth": "^7.0.2",
"@keystone-6/core": "^5.7.2",
"@keystone-6/fields-document": "^8.0.2",
Node version 18.18.0

windows 11, macos, and vercel build - same errors.

[stuible]

I also hit this error when I tried to move from Next 13 to Next 14 inside turborepo.

[MinskLeo]

Identical situation with upgrade from Next 13 to Next 14 in NX monorepo...

[borisno2]

There is potenitally multiple versions of NextJs in your dependency tree. You could try using overrides to force a particular version of NextJS - I am using Turbo with NextJS 14 without issues but using overrides https://github.com/borisno2/on-the-hill-drama-club/blob/main/package.json#L94

[stuible]

Good call @borisno2! I thought I had already ruled this out but tried again and was able to build without error.