error: field 'platform' has incomplete type

Issue template

• Hardware description: STM32F722ZET6U
• RTOS: FreeRTOS
• Installation type: custom ROS message
• Version or commit hash: Humble

Steps to reproduce the issue

I'm a beginner doing tutorials on the "micro.ros.org " site.
Among them, an error occurs during the "How to include a custom ROS message in micro-ROS" process and asks questions.
An error occurs while building micro-ROS workspace, and it does not work.
I'd appreciate your help.

Actual behavior

The error contents are as follows.

firmware/mcu_ws/eProsima/Micro-XRCE-DDS-Client/include/uxr/client/profile/transport/serial/serial_transport.h:39:30: error: field 'platform' has incomplete type
struct uxrSerialPlatform platform;
^~~~~~~~

Additional information

I attach the details as a picture.

从 firmware/mcu_ws/eProsima/Micro-XRCE-DDS-Client/include/uxr/client/profile/transport/serial/serial_transport.h 开始，检查构建输出和随附的屏幕截图，查找缺失的 uxrSerialPlatform 定义。在使用 FreeRTOS 的 STM32F722ZET6U 上复现自定义 ROS 消息教程，然后确定导致不完整类型错误的配置或 include 问题。micro-ROS 工作区成功构建即表示完成。