failed to get symbol 'rmw_init_options_init'

[samiamlabs]

Describe the bug The standalone 1.3 release for humble/ubuntu 22.04 fails to get a symbol when running the Ros2cs.Init() function.

To Reproduce Steps to reproduce the behavior:

1. Start with a clean Ubuntu 22.04 install
2. Do not install ROS2 (not sure if this is relevant)
3. Create a new Unity project with editor version 2022.3.7
4. Install libspdlog-dev using apt-get
5. Download and unzip https://github.com/RobotecAI/ros2-for-unity/releases/download/1.3.0/Ros2ForUnity_humble_standalone_ubuntu22.zip
6. Move the unzipped folder under Assets in the Unity project.
7. Add the ROS2UnityComponent script to a game object in the scene.
8. Press play
9. See error

The full error is:

RuntimeError: failed to get symbol 'rmw_init_options_init' due to Environment variable 'AMENT_PREFIX_PATH' is not set or empty, at ./src/functions.cpp:171, at ./src/rcl/init_options.c:75

Screenshots

Desktop (please complete the following information):

• OS: [Ubuntu22.04]
• ros2 distro [humble]
• ros2-for-unity version [1.3.0]
• ros2 environment setup [single pc]