必需的道具标签，但已定义

Question

我在向Material-UI凸起按钮组件添加属性“标签”时遇到问题

我尝试过：

    <MuiThemeProvider>
            <div>
            <AppBar
               title={intl.get('PASSWORDPAGETITLE')}  />  
               <RaisedButton label={intl.get('BUTTLOGIN')}  primary={true} style={style} onClick={(event) => this.handleClick(event)} />
               <div className="loginError"> {this.state.lastLoginAtt} </div>
           </div>
  </MuiThemeProvider>

控制台错误：

 Warning: Failed prop type: Required prop label or children or icon was not specified in RaisedButton.
        in RaisedButton (at App.js:1465)
        in App (at index.js:6)