控制臺提示下面警告，這個該怎么弄呢
Warning: the children of Select should be Select.Option or Select.OptGroup, instead of Option.

<Select
              showSearch
              style={{ width: 260,height: 32 }}
              placeholder={this.state.userSele}
              optionFilterProp="children"
              allowClear={true}
              onChange={this.stockCodeSelect}
              filterOption={(input,option) => option.props.children.toLowerCase().indexOf(input.toLowerCase()) >= 0}
            >
              {
                arr.map((item,index) => (
                  <Option value={item.CODE} key={index}>{item.NAME}</Option>
                )) 
              }
            </Select>