Thanks already if you can help me with this stubborn issue. I am trying to setup Ardupilot with ROS2, right now i am just working on simulation on example copters.
With this command: sim_vehicle.py -v copter –console –map -w
I am getting the expected results.
sim_vehicle.py -v copter –console –map -w

When i try to use this command: ros2 launch ardupilot_sitl sitl_dds_udp.launch.py transport:=udp4 synthetic_clock:=True wipe:=False model:=quad speedup:=1 slave:=0 instance:=0 defaults:=$(ros2 pkg prefix ardupilot_sitl)/share/ardupilot_sitl/config/default_params/copter.parm,$(ros2 pkg prefix ardupilot_sitl)/share/ardupilot_sitl/config/default_params/dds_udp.parm sim_address:=127.0.0.1 master:=tcp:127.0.0.1:5760 sitl:=127.0.0.1:5501

I get this:
enter image description here
Morever, the command doesnt launch any mavproxy so i am using mavproxy.py –master=tcp:127.0.0.1:5760 –console –map for launching it in seperate terminal but its console says link 1 down.

Also, because of this no ros2 nodes are visible. especially ros2 node info /ardupilot_dds.

I am Using Ubuntu 22.04 with ROS2 Humble.

I have tried to install all the dependencies but its still not working, also i am not sure how to check ardupilots version. I am just expecting to make the sitl launch properly and show standard ros2 nodes and topics.