Eslint reporting eslintrc configuration problems for dependency configs

Question

I am getting a deprecation warning when running the following lint command

eslint src/js/**/*.js src/js/**/*.jsx webpack.config.js --quiet

Warning:

DeprecationWarning: [eslint] The 'ecmaFeatures' config file property is deprecated, and has no effect. (found in /Users/me/Documents/my-project/node_modules/eslint-config-airbnb/rules/react.js

This seems like it is complaining about a file listed within the eslint-config-airbnb under react-a11y.js and react.js . Those files do indeed include the top level configuration

ecmaFeatures: {
  jsx: true
}

which appears to be incorrect: github issue , docs . However, it seems ( docs ) that node_modules should be ignored by eslint, and anyway just to be explicit, I've added the following to my .eslintignore

node_modules/**/*.*
node_modules 

Why am I getting a warning for an issue located within node_modules? The only thing I can think is that the ignore list doesn't include configurations for eslint itself, but that seems pretty far fetched that it would potentially warning me about every out-of-date or misconfiguration of each eslintrc file in node_modules?

In case it is relevant, my .eslintrc.json

{
  "env": {
    "es6": true,
    "browser": true,
    "node": true,
    "jest": true
  },
  "extends": ["airbnb", "prettier", "prettier/react"],
  "parserOptions": {
    "ecmaVersion": 2016,
    "sourceType": "module",
    "ecmaFeatures": {
      "experimentalObjectRestSpread": true,
      "jsx": true
    }
  },
  "plugins": ["prettier", "react"],
  "parser": "babel-eslint",
  "rules": {
    "no-param-reassign": 0
  }
}

How can I resolve this?

Edit:

Upgrading to eslint-config-airbnb@latest (where it looks the top-level ecmaFeatures problem has been resolved ) causes what look like more severe errors:

 /Users/me/Documents/my-project/node_modules/eslint-config-airbnb/rules/react.js: Configuration for rule "react/jsx-boolean-value" is invalid: Value "never,[object Object]" should NOT have more than 1 items. Referenced from: /Users/me/Documents/my-project/node_modules/eslint-config-airbnb/index.js Referenced from: /Users/me/Documents/my-project/.eslintrc.json Error: /Users/me/Documents/my-project/node_modules/eslint-config-airbnb/rules/react.js: Configuration for rule "react/jsx-boolean-value" is invalid: Value "never,[object Object]" should NOT have more than 1 items. Referenced from: /Users/me/Documents/my-project/node_modules/eslint-config-airbnb/index.js Referenced from: /Users/me/Documents/my-project/.eslintrc.json at validateRuleOptions (/Users/me/Documents/my-project/node_modules/eslint/lib/config/config-validator.js:113:15) at Object.keys.forEach.id (/Users/me/Documents/my-project/node_modules/eslint/lib/config/config-validator.js:153:9) at Array.forEach (native) at validateRules (/Users/me/Documents/my-project/node_modules/eslint/lib/config/config-validator.js:152:30) at Object.validate (/Users/me/Documents/my-project/node_modules/eslint/lib/config/config-validator.js:230:5) at loadFromDisk (/Users/me/Documents/my-project/node_modules/eslint/lib/config/config-file.js:549:19) at load (/Users/me/Documents/my-project/node_modules/eslint/lib/config/config-file.js:592:20) at configExtends.reduceRight (/Users/me/Documents/my-project/node_modules/eslint/lib/config/config-file.js:421:36) at Array.reduceRight (native) at applyExtends (/Users/me/Documents/my-project/node_modules/eslint/lib/config/config-file.js:403:28)

Answer 1

Update babel-preset-react and eslint-plugin-react, that solved the problem for me. If that raise new errors, you will be forced to update almost everything related to eslint.