CRA dev dependency warning with yarn workspaces with react-scripts@2.0.0

Is this a bug report?

YES

Did you try recovering your dependencies?

YES yarn 1.5.1

Which terms did you search for in User Guide?

Environment

1. node -v: 8.9.3
2. npm -v:
3. yarn --version (if you use Yarn): 1.5.1
4. npm ls react-scripts (if you haven’t ejected): 2.0.0-next.b2fd8db8

Then, specify:

1. Operating system: macOS
2. Browser and version (if relevant): Chrome

Steps to Reproduce

(Write your steps here:) Create app1 (express) with devdependencies: “devDependencies”: { “babel-jest”: “22.4.3”, “eslint”: “4.19.1”, “jest”: “22.4.3” }, Create app2 (CRA)

Expected Behavior

yarn start succeeds

Actual Behavior

There might be a problem with the project dependency tree. It is likely not a bug in Create React App, but something you need to fix locally.

The react-scripts package provided by Create React App requires a dependency:

“jest”: “22.1.2”

Don’t try to install it manually: your package manager does it automatically. However, a different version of jest was detected higher up in the tree:

root/node_modules/jest (version: 22.4.3)

Reproducible Demo

[bugzpodder]

there were a bunch of configuration issues when I tried to configure various projects. So at the end of the day I feel this warning is justified.
I ended up hoisting the packages suggested in the warning: jest specifically to get around this problem babel because of incompatibility issues for babel-loader with babel 7 and jest eslint for plugin errors I didn’t find any issues with webpack so far. — In root/package.json —

"workspaces": {
    "packages": [...],
    "nohoist": ["**/babel**", "**/eslint**", "**/jest"]
 }

[devrelm]

@Timer Can you expand on why this issue is closed? I’m still seeing it. We have a monorepo holding multiple CRA v1 apps and would prefer to not have to upgrade them all at once, but we’re seeing issues with a CRA v2 app exiting after warning about babel-jest being “detected higher up in the tree”.