小编Đức*_*yễn的帖子

这是我针对单个组件的简单 React 代码，但每次检查时它都会抛出相同的警告。即使复制和过去示例仍然相同的警告和图标无处可见。请帮忙！

关联

import React, { Component } from 'react';
import { Button } from '@material-ui/core';
import AddIcon from '@material-ui/icons/Add';


class AddWorkButton extends Component {
    constructor(props) {
        super(props);
        this.state = {  }
    }
    render() { 
        return (  
            <React.Fragment>
                <Button
                        variant="contained"
                        color="secondary"
                        startIcon={<AddIcon/>}
                >
                    TEST
                </Button>
            </React.Fragment>
        );
    }
}

export default AddWorkButton;