micro_ros_agent installation issue on ROS 2 Humble Ubuntu 22.04

[TannerGilbert]

Issue template

• Hardware description: PC, Ubuntu 22.04
• RTOS: Ardupilot SITL
• Installation type: micro_ros_setup
• Version or commit hash: humble

Steps to reproduce the issue

Follow First micro-ROS Application on Linux. When creating and building the micro-ROS agent

ros2 run micro_ros_setup create_agent_ws.sh
ros2 run micro_ros_setup build_agent.sh

I run into the following error:

stderr: micro_ros_agent
CMake Error at /opt/ros/humble/share/fastrtps/cmake/fastrtps-dynamic-targets.cmake:37 (message):
Some (but not all) targets in this export set were already defined.

Targets Defined: eProsima_atomic

Targets not yet defined: fastrtps

Call Stack (most recent call first):
/opt/ros/humble/share/fastrtps/cmake/fastrtps-config.cmake:60 (include)
CMakeLists.txt:37 (find_package)

Expected behavior

micro-ROS agent installation works as expected and I can use it for working with Ardupilot.

Actual behavior

stderr: micro_ros_agent
CMake Error at /opt/ros/humble/share/fastrtps/cmake/fastrtps-dynamic-targets.cmake:37 (message):
Some (but not all) targets in this export set were already defined.

Targets Defined: eProsima_atomic

Targets not yet defined: fastrtps

Call Stack (most recent call first):
/opt/ros/humble/share/fastrtps/cmake/fastrtps-config.cmake:60 (include)
CMakeLists.txt:37 (find_package)

Additional information

Installing Fast-DDS from source didn't fix the issue for me either

[seifseghiri]

Hi Tanner,
Any solution yet for fixing this?
Thanks in advance.

[starrtriaxle82]

Did you figure out this issue? I'm experiencing the same error.

Targets Defined: eProsima_atomic

Targets not yet defined: fastrtps

[TannerGilbert]

No I haven't found a solution to this yet.

[Ericc99]

I got the same problem as well ... hope someone can figure it out soon ...
Before that, may i suggest you use a docker image instead with the following command

sudo docker run -it --rm --net=host microros/micro-ros-agent:humble udp4 --port 8888 -v6

this works for me at the moment.

but watch out for your ufw status, or else all connection requests will be blocked lol.

[Ryanf55]

Using net=host and port 8888 is redundant, net=host opens everything.
ufw is not installed by default on ubuntu.
The errors explained are during configuration, not runtime, so I don't think the networking tips you have are related at all to the problems this ticket was created for.

[p8410077]

@TannerGilbert did you resolve the problem ? I ran into the same issue.

[TannerGilbert]

No unfortunately I didn't solve this yet. The error only occurs on one of my devices though so currently I just run on a different one. The solution proposed by @Ericc99 should probably also solve the issue but I haven't tested it myself yet.