Is this a bug report?

Yes

Can you also reproduce the problem with npm 4.x?

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Which terms did you search for in User Guide?

eject, eslint

Environment

1. npm ls react-scripts-ts (if you haven’t ejected):
2. node -v: v8.9.4
3. npm -v: 6.0.0
4. yarn --version (if you use Yarn): 1.7.0
5. npm ls react-scripts-ts (if you haven’t ejected):

Then, specify:

1. Operating system: linux (Pop!_OS)
2. Browser and version (if relevant):

Steps to Reproduce

npx create-react-app my-app --scripts-version=react-scripts-ts
cd my-app
npm run eject

2. Open a JS file, e.g. ./scripts/start.js
3. I am using Atom editor with linter-eslint, so it picks up the eslintConfig from ./package.json and it throws the Error: Error while running ESLint: Cannot find module 'eslint-config-react-app'

Expected Behavior

No ESLint Error on opening a JS file.

Which would probably be solved by either have no eslintConfig in ./package.json or have the stated react-app dependency installed.

Actual Behavior

After ejecting, if one then scrolls down to the bottom of ./package.json, it shows:

{
  "eslintConfig": {
    "extends": "react-app"
  }
}

Yet the dependency is missing:

npm ls eslint-config-react-app
my-app@0.1.0 /home/aurelien/tmp/my-app
└── (empty)

Reproducible Demo

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