ESLint configuration is invalid: - Unexpected top-level property "ecmaVersion".

Tell us about your environment

• ESLint Version: 4.4.1
• Node Version: 7.2.1
• npm Version: 3.10.10 What parser (default, Babel-ESLint, etc.) are you using? default Please show your full configuration: module.exports = { “env”: { “browser”: true, “commonjs”: true, “es6”: true }, “extends”: “eslint:recommended”, “parserOptions”: { “ecmaFeatures”: { “experimentalObjectRestSpread”: true, “jsx”: true }, “sourceType”: “module” }, “plugins”: [ “react” ], “rules”: { “indent”: [ “error”, 4 ], “linebreak-style”: [ “error”, “unix” ], “quotes”: [ “error”, “single” ], “semi”: [ “error”, “always” ] } };

Configuration

module.exports = {
    "env": {
        "browser": true,
        "commonjs": true,
        "es6": true
    },
    "extends": "eslint:recommended",
    "parserOptions": {
        "ecmaFeatures": {
            "experimentalObjectRestSpread": true,
            "jsx": true
        },
        "sourceType": "module"
    },
    "plugins": [
        "react"
    ],
    "rules": {
        "indent": [
            "error",
            4
        ],
        "linebreak-style": [
            "error",
            "unix"
        ],
        "quotes": [
            "error",
            "single"
        ],
        "semi": [
            "error",
            "always"
        ]
    }
};

What did you do? Please include the actual source code causing the issue.

What did you expect to happen?

What actually happened? Please include the actual, raw output from ESLint. in VScode eslint terminal, I got: [Info - 5:15:15 PM] ESLint server is running. [Info - 5:15:15 PM] ESLint library loaded from: /Users/jz/node_modules/eslint/lib/api.js [Info - 5:16:32 PM] ESLint library loaded from: /Users/jz/workspace/pai-internal/node_modules/eslint/lib/api.js (node:41610) DeprecationWarning: [eslint] The ‘ecmaFeatures’ config file property is deprecated, and has no effect. (found in /Users/jz/workspace/pai-internal/node_modules/eslint/conf/eslint-recommended.js)

[txusinho]

@diligiant just wanted to confirm that I was using the eslint-config-defaults, and those are the ones triggering the error.

Thanks for the response, since it helped others afterwards 👍

[diligiant]

@not-an-aardvark, I guess @jingzhou123 is still using the now deprecated eslint-config-defaults which states here:

"ecmaFeatures": {
    "modules": false
  },

which triggers the DeprecationWarning above.