React类没有被导出,我不知道为什么?

import React, {Component} from 'react';
import {HeaderAdmin} from '../headerAdmin';
import {DashBoxes} from './dashBoxes';
import {MetaData} from '../metaData';
import {withRouter} from 'react-router-dom';

class CoachDashMain extends Component {

    render() {
        return(
            <div>
                <HeaderAdmin />
                <DashBoxes />
                <MetaData />
            </div>
            );
    }
}

export default withRouter(CoachDashMain);

我得到的错误是 ./components/Coach/coachDashMain' does not contain an export named 'CoachDashMain'.

在另一个文件中导入的内容如下:

import {CoachDashMain} from './components/Coach/coachDashMain'