What version of Turborepo are you using?

1.2.14

What package manager are you using / does the bug impact?

Yarn v2/v3 (node_modules linker only)

What operating system are you using?

Mac

Describe the Bug

When you have "packageManager": "yarn@4.0.0-rc.6" in your root package.json, TurboRepo reports an error about not having set that property.

We did not detect an in-use package manager for your project. Please set the "packageManager" property in your root package.json (https://nodejs.org/api/packages.html#packagemanager) or run `npx @turbo/codemod add-package-manager` in the root of your monorepo.

However, running npx @turbo/codemod add-package-manager doesn't report any error. It detects the line and the exact version of yarn but doesn't touch it.

Expected Behavior

One of the following

• Turborepo should accept the use of yarn@4.0.0-rc.6 as a valid packageManager. (prefered)
• Turborepo should throw a warning about an unsupported version
• @turbo/codemod should throw a warning about an unsupported version

To Reproduce

init a new turborepo and update yarn to latest available version by using yarn set version canary