The are some build issues for ros2_openvino_toolkit galactic branch.

[huangjiafengx]

1.Ros2 version:
Ros2 Galactic:(https://docs.ros.org/en/galactic/Installation/Ubuntu-Install-Debians.html)
RealSense SDK(https://github.com/IntelRealSense/librealsense/blob/master/doc/distribution_linux.md)
2.OpenVINO™ Toolkit Version
apt-get install -y intel-openvino-dev-ubuntu20-2021.4.752
(The version intel-openvino-dev-ubuntu20-2021.4.582 and intel-openvino-dev-ubuntu20-2021.4.689
mobilenet-ssd can’t download file is too small)
The Step:

install ROS2_OpenVINO_Toolkit packages

mkdir -p ~/catkin_ws/src
cd ~/catkin_ws/src
git clone https://github.com/intel/ros2_openvino_toolkit -b galactic
git clone https://github.com/intel/ros2_object_msgs
git clone https://github.com/IntelRealSense/realsense-ros.git -b ros2
git clone https://github.com/ros-perception/vision_opencv.git -b ros2

Install dependencies

sudo apt-get install ros-galactic-diagnostic-updater
sudo apt-get install python3-colcon-common-extensions

Build package

apt update && apt install -y vim python3-pip && pip3 install networkx
source /opt/ros/galactic/setup.bash
source /opt/intel/openvino_2021/bin/setupvars.sh
cd ~/catkin_ws
colcon build --symlink-install
The is show pipwline_composite.cpp:99 declare_parameter(const string&) is deprecated:

There is the detail steps:
https://github.com/huangjiafengx/ros2_openvino_toolkit/blob/master/.github/workflows/main.yml