React组件的分析错误:呈现后出现意外标记，应为";"‘

import React from 'react';

function MyComponent() {
  return (
    <div>
      Hello, World!
    </div>
  );
}

export default MyComponent;

import React from 'react';

function MyComponent() {
  return (
    <div>
      <h1>Hello, World!</h1>
    </div>
  );
}

export default MyComponent;

npm update

yarn upgrade

npm install eslint --save-dev
npx eslint --init

{
  "parserOptions": {
    "ecmaVersion": 2020,
    "sourceType": "module",
    "ecmaFeatures": {
      "jsx": true
    }
  },
  "rules": {
    "semi": ["error", "always"]
  }
}

npx eslint src/