无法在material-ui@next中导入Svg图标

npm install @material-ui/core @material-ui/icons

import CheckCircle from '@material-ui/icons/CheckCircle';

import React from 'react';
import Button from '@material-ui/core/Button';
import CheckCircle from '@material-ui/icons/CheckCircle';

const MyButton = () => {
  return (
    <Button variant="contained" color="primary">
      <CheckCircle />
      确认
    </Button>
  );
};

export default MyButton;