eslint naming convention Component name “index” should always be multi-word.

four solutions

1. Rename directly

use camelCase or - to concatenate words

2. In the vue.config.js file, close the inspection

const { defineConfig } = require('@vue/cli-service')
module.exports = defineConfig({
  transpileDependencies: true,
  // 添加此行代码
  lintOnSave:false
})

3、

module.exports = {
  root: true,
  env: {
    node: true
  },
  'extends': [
    'plugin:vue/essential',
    'eslint:recommended'
  ],
  parserOptions: {
    parser: '@babel/eslint-parser'
  },
  rules: {
    'no-console': process.env.NODE_ENV === 'production' ? 'warn' : 'off',
    'no-debugger': process.env.NODE_ENV === 'production' ? 'warn' : 'off',
     //在rules中添加自定义规则
	 //关闭组件命名规则
     "vue/multi-word-component-names":"off",
  },
  overrides: [
    {
      files: [
        '**/__tests__/*.{j,t}s?(x)',
        '**/tests/unit/**/*.spec.{j,t}s?(x)'
      ],
      env: {
        jest: true
      }
    }
  ]
}

4. According to the official recommended setting, individual component names are ignored according to the component name

Add component naming ignore rules to rules in the .eslintrc.js file. Here index.vue is used as the page entry file, so index is ignored

module.exports = {
  root: true,
  env: {
    node: true
  },
  'extends': [
    'plugin:vue/essential',
    'eslint:recommended'
  ],
  parserOptions: {
    parser: '@babel/eslint-parser'
  },
  rules: {
    'no-console': process.env.NODE_ENV === 'production' ? 'warn' : 'off',
    'no-debugger': process.env.NODE_ENV === 'production' ? 'warn' : 'off',
     //在rules中添加自定义规则
	// 添加组件命名忽略规则
    "vue/multi-word-component-names": ["error",{
       "ignores": ["index","main"]//需要忽略的组件名
    }]
  },
  overrides: [
    {
      files: [
        '**/__tests__/*.{j,t}s?(x)',
        '**/tests/unit/**/*.spec.{j,t}s?(x)'
      ],
      env: {
        jest: true
      }
    }
  ]
}