Unexpected top-level property "comma-dangle".怎么解决

我在配置eslint的时候出现了如下错误:

 ERROR in ./src/index.js
Module build failed: Error: ESLint configuration in /home/suwu150/WebStormProject/electron-desktop-tools/.eslintrc is invalid:
        - Unexpected top-level property "comma-dangle".

    at validateConfigSchema (/home/suwu150/WebStormProject/electron-desktop-tools/node_modules/eslint/lib/config/config-validator.js:214:15)
    at Object.validate (/home/suwu150/WebStormProject/electron-desktop-tools/node_modules/eslint/lib/config/config-validator.js:231:5)

.eslintrc文件

{
  "parserOptions": {
    "ecmaVersion": 6,
    "sourceType": "module",
    "ecmaFeatures": {
      "jsx": true,
      "experimentalObjectRestSpread": true
    }
  },
  "rules": {
    "semi": 2
  },
  "comma-dangle": [1,"always-multiline"],
  "plugins": ["react"],
  "extends": "airbnb"
}
{
  "parserOptions": {
    "ecmaVersion": 6,
    "sourceType": "module",
    "ecmaFeatures": {
      "jsx": true,
      "experimentalObjectRestSpread": true
    }
  },
  "rules": {
    "semi": 2,
    "comma-dangle": ["off"],
    "import/no-named-as-default": 0
  },
  "plugins": ["react"],
  "extends": "airbnb"
}

规则的位置写错了