using {projectRoot} doesn't work with migrations

[cskiwi]

Current Behavior

hi,

I was trying to migrate my project from nx 20.1 to 20.3, and this was a whole process,
First off all I had a bun workspace, this just times out without any clear error.

Then I switched to npm and now It was complaining that {projectRoot}/.. files couldn't be found.
I used the projectroot because then I can copy past my configs.

So I had to do the following for each project.json I had

And this is a very large project, so took more time then I wanted.

Expected Behavior

That the files can be resolved when using the {projectRoot}

GitHub Repo

No response

Steps to Reproduce

1. Use projectRoot

Nx Report

NX  Falling back to ts-node for local typescript execution. This may be a little slower.
  - To fix this, ensure @swc-node/register and @swc/core have been installed

 NX   Report complete - copy this into the issue template

Node           : 20.17.0
OS             : win32-x64
Native Target  : x86_64-windows
npm            : 10.8.2

nx                     : 20.3.0
@nx/js                 : 20.3.0
@nx/jest               : 20.3.0
@nx/eslint             : 20.3.0
@nx/workspace          : 20.3.0
@nx/angular            : 20.3.0
@nx/devkit             : 20.3.0
@nx/eslint-plugin      : 20.3.0
@nx/module-federation  : 20.3.0
@nx/nest               : 20.3.0
@nx/node               : 20.3.0
@nx/playwright         : 20.3.0
@nx/vite               : 20.3.0
@nx/web                : 20.3.0
@nx/webpack            : 20.3.0
typescript             : 5.7.2
---------------------------------------
Registered Plugins:
@nx/eslint/plugin
@nx/jest/plugin
@nx/playwright/plugin
@nx/webpack/plugin
---------------------------------------
Community plugins:
@auth0/auth0-angular : 2.2.3
apollo-angular       : 8.0.0
ng-apexcharts        : 1.15.0
ng-process-env       : 16.0.6
ngxtension           : 4.2.0

Failure Logs

Package Manager Version

bun 1.1.42 /npm 20.17.0

Operating System

• macOS
• Linux
• Windows
• Other (Please specify)

Additional Information

No response