using sdk1.2.0  can not get private_ip  when  request InstanceService.DescribeInstancesInput  and  NicService.describeNics   

  <dependency>
            <groupId>com.qingcloud</groupId>
            <artifactId>qingcloud-sdk-java</artifactId>
            <version>1.2.0</version>
        </dependency>
SDK版本为1.2.0  

调用  InstanceService.DescribeInstancesInput  返回结果没有 private_ip  返回值 为""
调用  NicService.describeNics    返回结果没有 private_ip  返回值 为""