Recently, I can load single uav in gazebo sumulation and control it to do some actions. Now, I attempt to create more uav in gaezbo in order to simulate uav cluster. But I meet some problem, one is that when I attempt to modify the erlecopter_spawn.launch in ardupilot_sitl_gazebo_plugin/ardupilot_sitl_gazebo_plugin, I don't know the exactly step.
There are some topics that discuss this problem, but there are no exactly step to do it. The address of the related topic are here:
Do you know the exactly step to launch multi uav in gazebo simulation?