Antd mobile picker 的显示空白

#1 
   const seasons = [
            [
              {
                label: '2013',
                value: '2013',
              },
              {
                label: '2014',
                value: '2014',
              },
            ],
            [
              {
                label: '春',
                value: '春',
              },
              {
                label: '夏',
                value: '夏',
              },
            ],
          ];

// render
<List style={{ backgroundColor: 'white' }} className="picker-list">
                             <Picker
                               key="01"
                               data={seasons}
                               title="选择季节"
                            //    cascade={false}
                               extra="请选择(可选)"
                               value={this.state.sValue}
                               onChange={v => this.setState({ sValue: v })}
                               onOk={v => this.setState({ sValue: v })}
                                >
                                <List.Item arrow="horizontal">Multiple</List.Item>
                              </Picker>
                          </List>

数据无法显示，呈现空白

如果设置

    cascade={false}

####会报这样的错