Out of date eslint plugin causes `Parsing error: Cannot read property 'map' of undefined`

[radiosilence]

Describe the bug

I've upgraded my project's TypeScript to version 4. It seems this creates an issue because react-scripts @typescript-eslint/parser is out of date. Could we bump these packages?

Currently I am doing this in my package.json:

  "resolutions": {
    "**/@typescript-eslint/parser": "4.0.1",
    "**/@typescript-eslint/eslint-plugin": "4.0.1"
  },

as a workaround.

[thien-do]

The resolutions is for Yarn, for NPM uses https://docs.npmjs.com/cli/shrinkwrap or https://www.npmjs.com/package/npm-force-resolutions

Anyway look like CRA is using version 2 of the plugin.. that means 2 major versions of the plugin and 1 major version of eslint we're behind

[radiosilence]

Yeah it is quite a way behind. What would be the negatives of bumping it?

[radiosilence]

#9590 Submitted a PR. Wonder when all the builds will start working :S

[thien-do]

I've just realized the PR is tagged with v4 :( is there any chance we can still have this in v3?