[Bug]: segmentation faults when trying to start simulation

[andrejpan]

What happened?

$ ros2 launch robotnik_gazebo_ignition spawn_world.launch.py                                                                                                                              17:20:30 [105/1003]
[INFO] [launch]: All log files can be found below /home/andrejpan/.ros/log/2025-07-02-17-20-26-179148-notebook-148817                                                                                              
[INFO] [launch]: Default logging verbosity is set to INFO                                                                                                                                                          
[INFO] [gazebo-1]: process started with pid [148839]                                                                                                                                                               
[INFO] [gazebo-2]: process started with pid [148840]                                                                                                                                                               
[gazebo-1] Warning [Utils.cc:132] [/sdf/world[@name="default"]/model[@name="ground_plane"]/link[@name="link"]/collision[@name="collision"]/surface/friction/bullet/mu:/home/andrejpan/code/robotnik_ws/install/robo
tnik_gazebo_ignition/share/robotnik_gazebo_ignition/worlds/ignition/demo.sdf.world:L67]: XML Element[mu], child of element[bullet], not defined in SDF. Copying[mu] as children of [bullet].                       
[gazebo-1] Warning [Utils.cc:132] [/sdf/world[@name="default"]/model[@name="ground_plane"]/link[@name="link"]/collision[@name="collision"]/surface/friction/torsional/bullet:/home/andrejpan/code/robotnik_ws/insta
ll/robotnik_gazebo_ignition/share/robotnik_gazebo_ignition/worlds/ignition/demo.sdf.world:L70]: XML Element[bullet], child of element[torsional], not defined in SDF. Copying[bullet] as children of [torsional].  
[gazebo-1] Warning [Utils.cc:132] [/sdf/world[@name="default"]/physics[@name="default_physics"]/bullet/friction_model:/home/andrejpan/code/robotnik_ws/install/robotnik_gazebo_ignition/share/robotnik_gazebo_ignit
ion/worlds/ignition/demo.sdf.world:L103]: XML Element[friction_model], child of element[bullet], not defined in SDF. Copying[friction_model] as children of [bullet].                                              
[gazebo-2] Warning [Utils.cc:132] [/sdf/model[@name="ground_plane"]/link[@name="link"]/collision[@name="collision"]/surface/friction/bullet/mu:<data-string>:L21]: XML Element[mu], child of element[bullet], not d
efined in SDF. Copying[mu] as children of [bullet].                                                                                                                                                                
[gazebo-2] Warning [Utils.cc:132] [/sdf/model[@name="ground_plane"]/link[@name="link"]/collision[@name="collision"]/surface/friction/torsional/bullet:<data-string>:L24]: XML Element[bullet], child of element[tor
sional], not defined in SDF. Copying[bullet] as children of [torsional].                                                                                                                                           
[gazebo-2] Warning [Utils.cc:132] [/sdf/model[@name="ground_plane"]/link[@name="link"]/collision[@name="collision"]/surface/friction/bullet/mu:<data-string>:L21]: XML Element[mu], child of element[bullet], not d
efined in SDF. Copying[mu] as children of [bullet].                                                                                                                                                                
[gazebo-2] Warning [Utils.cc:132] [/sdf/model[@name="ground_plane"]/link[@name="link"]/collision[@name="collision"]/surface/friction/torsional/bullet:<data-string>:L24]: XML Element[bullet], child of element[tor
sional], not defined in SDF. Copying[bullet] as children of [torsional].                                                                                                                                           
[gazebo-2] libEGL warning: egl: failed to create dri2 screen                                                                                                                                                       
[gazebo-2] libEGL warning: egl: failed to create dri2 screen                                                                                                                                                       
[gazebo-2] libEGL warning: egl: failed to create dri2 screen                                                                                                                                                       
[gazebo-1] Warning [Utils.cc:132] [/sdf/model[@name="rb_theron"]/link[@name="robot_base_footprint"]/sensor[@name="front_laser"]/gz_frame_id:<urdf-string>:L0]: XML Element[gz_frame_id], child of element[sensor], 
not defined in SDF. Copying[gz_frame_id] as children of [sensor].                                        
[gazebo-1] Warning [Utils.cc:132] [/sdf/model[@name="rb_theron"]/link[@name="robot_base_footprint"]/sensor[@name="front_camera_color"]/camera[@name="front_camera_color"]/vertical_fov:<urdf-string>:L0]: XML Eleme
nt[vertical_fov], child of element[camera], not defined in SDF. Copying[vertical_fov] as children of [camera].
[gazebo-1] Warning [Utils.cc:132] [/sdf/model[@name="rb_theron"]/link[@name="robot_base_footprint"]/sensor[@name="front_camera_color"]/gz_frame_id:<urdf-string>:L0]: XML Element[gz_frame_id], child of element[se
nsor], not defined in SDF. Copying[gz_frame_id] as children of [sensor].                                 
[gazebo-1] Warning [Utils.cc:132] [/sdf/model[@name="rb_theron"]/link[@name="robot_base_footprint"]/sensor[@name="front_camera_color"]/camera_info_topic:<urdf-string>:L0]: XML Element[camera_info_topic], child o
f element[sensor], not defined in SDF. Copying[camera_info_topic] as children of [sensor].               
[gazebo-1] Warning [Utils.cc:132] [/sdf/model[@name="rb_theron"]/link[@name="robot_base_footprint"]/sensor[@name="rear_laser"]/gz_frame_id:<urdf-string>:L0]: XML Element[gz_frame_id], child of element[sensor], n
ot defined in SDF. Copying[gz_frame_id] as children of [sensor].                                         
[gazebo-1] Warning [Utils.cc:132] [/sdf/model[@name="rb_theron"]/link[@name="robot_base_footprint"]/sensor[@name="rear_camera_color"]/camera[@name="rear_camera_color"]/vertical_fov:<urdf-string>:L0]: XML Element
[vertical_fov], child of element[camera], not defined in SDF. Copying[vertical_fov] as children of [camera].
[gazebo-1] Warning [Utils.cc:132] [/sdf/model[@name="rb_theron"]/link[@name="robot_base_footprint"]/sensor[@name="rear_camera_color"]/gz_frame_id:<urdf-string>:L0]: XML Element[gz_frame_id], child of element[sen
sor], not defined in SDF. Copying[gz_frame_id] as children of [sensor].                                  
[gazebo-1] Warning [Utils.cc:132] [/sdf/model[@name="rb_theron"]/link[@name="robot_base_footprint"]/sensor[@name="rear_camera_color"]/camera_info_topic:<urdf-string>:L0]: XML Element[camera_info_topic], child of
 element[sensor], not defined in SDF. Copying[camera_info_topic] as children of [sensor].                
[gazebo-1] Warning [Utils.cc:132] [/sdf/model[@name="rb_theron"]/link[@name="robot_base_footprint"]/sensor[@name="imu_sensor"]/imu/orientation:<urdf-string>:L0]: XML Element[orientation], child of element[imu], 
not defined in SDF. Copying[orientation] as children of [imu].                                           
[gazebo-1] Warning [Utils.cc:132] [/sdf/model[@name="rb_theron"]/link[@name="robot_base_footprint"]/sensor[@name="imu_sensor"]/imu/orientation_enabled:<urdf-string>:L0]: XML Element[orientation_enabled], child o
f element[imu], not defined in SDF. Copying[orientation_enabled] as children of [imu].                   
[gazebo-1] Warning [Utils.cc:132] [/sdf/model[@name="rb_theron"]/link[@name="robot_base_footprint"]/sensor[@name="imu_sensor"]/imu/angular_velocity_enabled:<urdf-string>:L0]: XML Element[angular_velocity_enabled
], child of element[imu], not defined in SDF. Copying[angular_velocity_enabled] as children of [imu].    
[gazebo-1] Warning [Utils.cc:132] [/sdf/model[@name="rb_theron"]/link[@name="robot_base_footprint"]/sensor[@name="imu_sensor"]/imu/linear_acceleration_enabled:<urdf-string>:L0]: XML Element[linear_acceleration_e
nabled], child of element[imu], not defined in SDF. Copying[linear_acceleration_enabled] as children of [imu].
[gazebo-1] Warning [Utils.cc:132] [/sdf/model[@name="rb_theron"]/link[@name="robot_base_footprint"]/sensor[@name="imu_sensor"]/gz_frame_id:<urdf-string>:L0]: XML Element[gz_frame_id], child of element[sensor], n
ot defined in SDF. Copying[gz_frame_id] as children of [sensor].  
[gazebo-1] 2025-07-02 17:20:40.513 | robot.gz_ros_control: Loading controller_manager
[gazebo-1] 2025-07-02 17:20:40.535 | robot.controller_manager: Using ROS clock for triggering controller manager cycles.
[gazebo-1] 2025-07-02 17:20:40.543 | robot.controller_manager: Subscribing to '/robot/robot_description' topic for robot description.
[gazebo-1] 2025-07-02 17:20:40.549 | robot.gz_ros_control: Waiting RM to load and initialize hardware...
[gazebo-1] 2025-07-02 17:20:40.553 | robot.controller_manager: Received robot description from topic.
[gazebo-1] 2025-07-02 17:20:40.567 | robot.gz_ros_control: The position_proportional_gain has been set to: 0.1
[gazebo-1] 2025-07-02 17:20:40.567 | robot.gz_ros_control: Loading joint: robot_left_wheel_joint
[gazebo-1] 2025-07-02 17:20:40.567 | robot.gz_ros_control:      State:
[gazebo-1] 2025-07-02 17:20:40.567 | robot.gz_ros_control:               position
[gazebo-1] 2025-07-02 17:20:40.567 | robot.gz_ros_control:               velocity
[gazebo-1] 2025-07-02 17:20:40.567 | robot.gz_ros_control:               effort
[gazebo-1] 2025-07-02 17:20:40.567 | robot.gz_ros_control:      Command:
[gazebo-1] 2025-07-02 17:20:40.567 | robot.gz_ros_control:               velocity
[gazebo-1] 2025-07-02 17:20:40.567 | robot.gz_ros_control: Loading joint: robot_right_wheel_joint
[gazebo-1] 2025-07-02 17:20:40.567 | robot.gz_ros_control:      State:
[gazebo-1] 2025-07-02 17:20:40.567 | robot.gz_ros_control:               position
[gazebo-1] 2025-07-02 17:20:40.568 | robot.gz_ros_control:               velocity
[gazebo-1] 2025-07-02 17:20:40.568 | robot.gz_ros_control:               effort
[gazebo-1] 2025-07-02 17:20:40.568 | robot.gz_ros_control:      Command:
[gazebo-1] 2025-07-02 17:20:40.568 | robot.gz_ros_control:               velocity
[gazebo-1] 2025-07-02 17:20:40.568 | robot.gz_ros_control: Loading sensor: imu_sensor
[gazebo-1] 2025-07-02 17:20:40.568 | robot.gz_ros_control:      State:
[gazebo-1] 2025-07-02 17:20:40.568 | robot.gz_ros_control.resource_manager: Initialize hardware 'IgnitionSystem' 
[gazebo-1] 2025-07-02 17:20:40.568 | robot.gz_ros_control.resource_manager: Successful initialization of hardware 'IgnitionSystem'
[gazebo-1] 2025-07-02 17:20:40.568 | resource_manager: 'configure' hardware 'IgnitionSystem' 
[gazebo-1] 2025-07-02 17:20:40.568 | robot.gz_ros_control: System Successfully configured!
[gazebo-1] 2025-07-02 17:20:40.568 | resource_manager: Successful 'configure' of hardware 'IgnitionSystem'
[gazebo-1] 2025-07-02 17:20:40.568 | resource_manager: 'activate' hardware 'IgnitionSystem' 
[gazebo-1] 2025-07-02 17:20:40.568 | resource_manager: Successful 'activate' of hardware 'IgnitionSystem'
[gazebo-1] 2025-07-02 17:20:40.569 | robot.controller_manager: Resource Manager has been successfully initialized. Starting Controller Manager services...
[gazebo-1] 2025-07-02 17:20:40.586 | robot.controller_manager: Loading controller : 'joint_state_broadcaster' of type 'joint_state_broadcaster/JointStateBroadcaster'
[gazebo-1] 2025-07-02 17:20:40.586 | robot.controller_manager: Loading controller 'joint_state_broadcaster'
[gazebo-1] 2025-07-02 17:20:40.596 | robot.controller_manager: Controller 'joint_state_broadcaster' node arguments: --ros-args --params-file /home/andrejpan/code/robotnik_ws/install/robotnik_description/share/ro
botnik_description/simulators/gazebo_ignition/rbtheron/rbtheron_controller_params.yaml -p use_sim_time:=true --param use_sim_time:=true 
[gazebo-1] 2025-07-02 17:20:40.617 | robot.controller_manager: Configuring controller: 'joint_state_broadcaster'
[gazebo-1] 2025-07-02 17:20:40.617 | robot.joint_state_broadcaster: 'joints' or 'interfaces' parameter is empty. All available state interfaces will be published
[gazebo-1] 2025-07-02 17:20:40.643 | robot.controller_manager: Activating controllers: [ joint_state_broadcaster ]
[gazebo-1] 2025-07-02 17:20:42.828 | robot.gz_ros_control:  Desired controller update period (0.01 s) is slower than the gazebo simulation period (0.001 s).
[gazebo-1] 2025-07-02 17:20:42.829 | robot.gz_ros_control: IMU imu_sensor has a topic name: robot/imu/data
[gazebo-1] 2025-07-02 17:20:42.830 | robot.controller_manager: Successfully switched controllers!
[gazebo-2] Warning [Utils.cc:132] [/sdf/model[@name="rb_theron"]/link[@name="robot_base_footprint"]/sensor[@name="front_laser"]/gz_frame_id:<data-string>:L266]: XML Element[gz_frame_id], child of element[sensor]
, not defined in SDF. Copying[gz_frame_id] as children of [sensor].                                      
[gazebo-2] Warning [Utils.cc:132] [/sdf/model[@name="rb_theron"]/link[@name="robot_base_footprint"]/sensor[@name="front_camera_color"]/camera[@name="front_camera_color"]/vertical_fov:<data-string>:L285]: XML Ele
ment[vertical_fov], child of element[camera], not defined in SDF. Copying[vertical_fov] as children of [camera].
[gazebo-2] Warning [Utils.cc:132] [/sdf/model[@name="rb_theron"]/link[@name="robot_base_footprint"]/sensor[@name="front_camera_color"]/gz_frame_id:<data-string>:L292]: XML Element[gz_frame_id], child of element[
sensor], not defined in SDF. Copying[gz_frame_id] as children of [sensor].                               
[gazebo-2] Warning [Utils.cc:132] [/sdf/model[@name="rb_theron"]/link[@name="robot_base_footprint"]/sensor[@name="front_camera_color"]/camera_info_topic:<data-string>:L293]: XML Element[camera_info_topic], child
 of element[sensor], not defined in SDF. Copying[camera_info_topic] as children of [sensor].             
[gazebo-2] Warning [Utils.cc:132] [/sdf/model[@name="rb_theron"]/link[@name="robot_base_footprint"]/sensor[@name="rear_laser"]/gz_frame_id:<data-string>:L320]: XML Element[gz_frame_id], child of element[sensor],
 not defined in SDF. Copying[gz_frame_id] as children of [sensor].                                       
[gazebo-2] Warning [Utils.cc:132] [/sdf/model[@name="rb_theron"]/link[@name="robot_base_footprint"]/sensor[@name="rear_camera_color"]/camera[@name="rear_camera_color"]/vertical_fov:<data-string>:L339]: XML Eleme
nt[vertical_fov], child of element[camera], not defined in SDF. Copying[vertical_fov] as children of [camera].
[gazebo-2] Warning [Utils.cc:132] [/sdf/model[@name="rb_theron"]/link[@name="robot_base_footprint"]/sensor[@name="rear_camera_color"]/gz_frame_id:<data-string>:L346]: XML Element[gz_frame_id], child of element[s
ensor], not defined in SDF. Copying[gz_frame_id] as children of [sensor].                                
[gazebo-2] Warning [Utils.cc:132] [/sdf/model[@name="rb_theron"]/link[@name="robot_base_footprint"]/sensor[@name="rear_camera_color"]/camera_info_topic:<data-string>:L347]: XML Element[camera_info_topic], child 
of element[sensor], not defined in SDF. Copying[camera_info_topic] as children of [sensor].              
[gazebo-2] Warning [Utils.cc:132] [/sdf/model[@name="rb_theron"]/link[@name="robot_base_footprint"]/sensor[@name="imu_sensor"]/imu/orientation:<data-string>:L395]: XML Element[orientation], child of element[imu]
, not defined in SDF. Copying[orientation] as children of [imu].                                         
[gazebo-2] Warning [Utils.cc:132] [/sdf/model[@name="rb_theron"]/link[@name="robot_base_footprint"]/sensor[@name="imu_sensor"]/imu/orientation_enabled:<data-string>:L415]: XML Element[orientation_enabled], child
 of element[imu], not defined in SDF. Copying[orientation_enabled] as children of [imu].                 
[gazebo-2] Warning [Utils.cc:132] [/sdf/model[@name="rb_theron"]/link[@name="robot_base_footprint"]/sensor[@name="imu_sensor"]/imu/angular_velocity_enabled:<data-string>:L416]: XML Element[angular_velocity_enabl
ed], child of element[imu], not defined in SDF. Copying[angular_velocity_enabled] as children of [imu].  
[gazebo-2] Warning [Utils.cc:132] [/sdf/model[@name="rb_theron"]/link[@name="robot_base_footprint"]/sensor[@name="imu_sensor"]/imu/linear_acceleration_enabled:<data-string>:L417]: XML Element[linear_acceleration
_enabled], child of element[imu], not defined in SDF. Copying[linear_acceleration_enabled] as children of [imu].
[gazebo-2] Warning [Utils.cc:132] [/sdf/model[@name="rb_theron"]/link[@name="robot_base_footprint"]/sensor[@name="imu_sensor"]/gz_frame_id:<data-string>:L421]: XML Element[gz_frame_id], child of element[sensor],
 not defined in SDF. Copying[gz_frame_id] as children of [sensor]
[gazebo-1] libEGL warning: egl: failed to create dri2 screen
[gazebo-1] libEGL warning: egl: failed to create dri2 screen
[gazebo-1] libEGL warning: egl: failed to create dri2 screen
[gazebo-1] 2025-07-02 17:20:50.794 | robot.controller_manager: Loading controller : 'robotnik_base_controller' of type 'robotnik_controllers/RBTheronController'
[gazebo-1] 2025-07-02 17:20:50.795 | robot.controller_manager: Loading controller 'robotnik_base_controller'
[gazebo-1] 2025-07-02 17:20:50.106 | robot.controller_manager: Controller 'robotnik_base_controller' node arguments: --ros-args --params-file /home/andrejpan/code/robotnik_ws/install/robotnik_description/share/robotnik_description/simulators/gazebo_ignition/rbtheron/rbtheron_controller_params.yaml -p use_sim_time:=true --param use_sim_time:=true 
[gazebo-1] 2025-07-02 17:20:50.144 | robot.controller_manager: Configuring controller: 'robotnik_base_controller'
[gazebo-1] 2025-07-02 17:20:50.184 | robot.robotnik_base_controller: BaseController::command_interface_configuration
[gazebo-1] 2025-07-02 17:20:50.184 | robot.robotnik_base_controller: BaseController::state_interface_configuration
[gazebo-1] 2025-07-02 17:20:50.209 | robot.controller_manager: Activating controllers: [ robotnik_base_controller ]
[gazebo-1] 2025-07-02 17:20:50.209 | robot.robotnik_base_controller: BaseController::command_interface_configuration
[gazebo-1] 2025-07-02 17:20:50.209 | robot.robotnik_base_controller: BaseController::state_interface_configuration
[gazebo-1] 2025-07-02 17:20:50.210 | robot.robotnik_base_controller: BaseController::command_interface_configuration
[gazebo-1] 2025-07-02 17:20:50.210 | robot.robotnik_base_controller: BaseController::command_interface_configuration
[gazebo-1] 2025-07-02 17:20:50.210 | robot.robotnik_base_controller: BaseController::state_interface_configuration
[gazebo-1] 2025-07-02 17:20:50.210 | robot.robotnik_base_controller: BaseController::command_interface_configuration
[gazebo-1] 2025-07-02 17:20:50.210 | robot.robotnik_base_controller: BaseController::state_interface_configuration
[gazebo-1] 2025-07-02 17:20:50.221 | robot.robotnik_base_controller: BaseController::command_interface_configuration
[gazebo-1] 2025-07-02 17:20:50.221 | robot.robotnik_base_controller: BaseController::state_interface_configuration
[gazebo-1] 2025-07-02 17:20:50.221 | robot.robotnik_base_controller: robotnik_controllers -> RobotnikController::on_activate
[gazebo-1] 2025-07-02 17:20:50.221 | robot.robotnik_base_controller: BaseController::command_interface_configuration
[gazebo-1] 2025-07-02 17:20:50.221 | robot.controller_manager: Successfully switched controllers!
[gazebo-1] Stack trace (most recent call last) in thread 149485:
[gazebo-1] #9    Object "[0xffffffffffffffff]", at 0xffffffffffffffff, in 
[gazebo-1] #8    Object "/lib/x86_64-linux-gnu/libc.so.6", at 0x7f6109729c3b, in 
[gazebo-1] #7    Object "/lib/x86_64-linux-gnu/libc.so.6", at 0x7f610969caa3, in 
[gazebo-1] #6    Object "/lib/x86_64-linux-gnu/libstdc++.so.6", at 0x7f6103cecdb3, in 
[gazebo-1] #5    Object "/opt/ros/jazzy/opt/gz_sim_vendor/lib/libgz-sim8.so.8", at 0x7f6102d4ed45, in 
[gazebo-1] #4    Object "/opt/ros/jazzy/lib/libgz_ros2_control-system.so", at 0x7f60beefd428, in gz_ros2_control::GazeboSimROS2ControlPlugin::PostUpdate(gz::sim::v8::UpdateInfo const&, gz::sim::v8::EntityComponentManager const&)
[gazebo-1] #3    Object "/opt/ros/jazzy/lib/libcontroller_manager.so", at 0x7f60bee0cc92, in controller_manager::ControllerManager::update(rclcpp::Time const&, rclcpp::Duration const&)
[gazebo-1] #2    Object "/opt/ros/jazzy/lib/libcontroller_interface.so", at 0x7f60be9b78ca, in controller_interface::ControllerInterfaceBase::trigger_update(rclcpp::Time const&, rclcpp::Duration const&)
[gazebo-1] #1    Object "/opt/ros/jazzy/lib/librobotnik_controllers.so", at 0x7f6048f42a5d, in robotnik_controllers::RobotnikController::update(rclcpp::Time const&, rclcpp::Duration const&)
[gazebo-1] #0    Object "/opt/ros/jazzy/lib/librobotnik_controllers.so", at 0x7f6048f3e360, in robotnik_controllers::RobotnikController::write_command_interface(std::vector<robotnik_controllers::wheel_states_t, std::allocator<robotnik_controllers::wheel_states_t> >&)
[gazebo-1] Segmentation fault (Signal sent by the kernel [(nil)])
[gazebo-1] Segmentation fault (core dumped)
[ERROR] [gazebo-1]: process has died [pid 148839, exit code 139, cmd 'ruby $(which gz) sim -r -s /home/andrejpan/code/robotnik_ws/install/robotnik_gazebo_ignition/share/robotnik_gazebo_ignition/worlds/ignition/demo.sdf.world --force-version 8'].
[INFO] [launch]: process[gazebo-1] was required: shutting down launched system
[INFO] [gazebo-2]: sending signal 'SIGINT' to process[gazebo-2]
[ERROR] [gazebo-2]: process[gazebo-2] failed to terminate '5' seconds after receiving 'SIGINT', escalating to 'SIGTERM'
[INFO] [gazebo-2]: sending signal 'SIGTERM' to process[gazebo-2]
[ERROR] [gazebo-2]: process has died [pid 148840, exit code -15, cmd 'ruby $(which gz) sim -g  --force-version 8'].
[INFO] [launch]: process[gazebo-2] was required: shutting down launched system

Second shell

$ ros2 launch robotnik_gazebo_ignition spawn_robot.launch.py robot:=rbtheron
[INFO] [launch]: All log files can be found below /home/andrejpan/.ros/log/2025-07-02-17-20-38-771384-notebook-149259
[INFO] [launch]: Default logging verbosity is set to INFO
[INFO] [robot_state_publisher-1]: process started with pid [149283]
[INFO] [create-2]: process started with pid [149284]
[INFO] [parameter_bridge-3]: process started with pid [149285]
[INFO] [spawner-4]: process started with pid [149286]
[INFO] [rviz2-5]: process started with pid [149287]
[robot_state_publisher-1] 2025-07-02 17:20:39.875 | robot.robot_state_publisher: Robot initialized
[create-2] 2025-07-02 17:20:39.880 | robot.ros_gz_sim: Requesting list of world names.
[create-2] 2025-07-02 17:20:40.855 | robot.ros_gz_sim: Waiting messages on topic [robot_description].
[create-2] 2025-07-02 17:20:40.996 | robot.ros_gz_sim: Entity creation successful.
[INFO] [create-2]: process has finished cleanly [pid 149284]
[spawner-4] 2025-07-02 17:20:40.333 | robot.spawner_joint_state_broadcaster: waiting for service /robot/controller_manager/list_controllers to become available...
[spawner-4] 2025-07-02 17:20:40.615 | robot.spawner_joint_state_broadcaster: Loaded joint_state_broadcaster
[rviz2-5] 2025-07-02 17:20:40.666 | rviz2: Stereo is NOT SUPPORTED
[rviz2-5] 2025-07-02 17:20:40.666 | rviz2: OpenGl version: 4.6 (GLSL 4.6)
[rviz2-5] 2025-07-02 17:20:40.773 | rviz2: Stereo is NOT SUPPORTED
[parameter_bridge-3] 2025-07-02 17:20:40.882 | robot.ros_gz_bridge: Creating GZ->ROS Bridge: [clock (gz.msgs.Clock) -> /clock (rosgraph_msgs/msg/Clock)] (Lazy 0)
[parameter_bridge-3] 2025-07-02 17:20:40.885 | robot.ros_gz_bridge: Creating GZ->ROS Bridge: [/robot/front_laser/scan (gz.msgs.LaserScan) -> /robot/front_laser/scan (sensor_msgs/msg/LaserScan)] (Lazy 0)
[parameter_bridge-3] 2025-07-02 17:20:40.889 | robot.ros_gz_bridge: Creating GZ->ROS Bridge: [/robot/rear_laser/scan (gz.msgs.LaserScan) -> /robot/rear_laser/scan (sensor_msgs/msg/LaserScan)] (Lazy 0)
[parameter_bridge-3] 2025-07-02 17:20:40.890 | robot.ros_gz_bridge: Creating GZ->ROS Bridge: [/robot/front_camera_color/color/camera_info (gz.msgs.CameraInfo) -> /robot/front_rgbd_camera/color/camera_info (sensor_msgs/msg/CameraInfo)] (Lazy 0)
[parameter_bridge-3] 2025-07-02 17:20:40.892 | robot.ros_gz_bridge: Creating GZ->ROS Bridge: [/robot/front_camera_color/color/image_raw (gz.msgs.Image) -> /robot/front_rgbd_camera/color/image_raw (sensor_msgs/msg/Image)] (Lazy 0)
[parameter_bridge-3] 2025-07-02 17:20:40.893 | robot.ros_gz_bridge: Creating GZ->ROS Bridge: [/robot/rear_camera_color/color/camera_info (gz.msgs.CameraInfo) -> /robot/rear_rgbd_camera/color/camera_info (sensor_msgs/msg/CameraInfo)] (Lazy 0)
[parameter_bridge-3] 2025-07-02 17:20:40.895 | robot.ros_gz_bridge: Creating GZ->ROS Bridge: [/robot/rear_camera_color/color/image_raw (gz.msgs.Image) -> /robot/rear_rgbd_camera/color/image_raw (sensor_msgs/msg/Image)] (Lazy 0)
[parameter_bridge-3] 2025-07-02 17:20:40.897 | robot.ros_gz_bridge: Creating GZ->ROS Bridge: [/robot/imu/data (ignition.msgs.IMU) -> /robot/imu/data (sensor_msgs/msg/Imu)] (Lazy 0)
[rviz2-5] 2025-07-02 17:20:41.737 | rviz2: Stereo is NOT SUPPORTED
[spawner-4] 2025-07-02 17:20:47.766 | robot.spawner_joint_state_broadcaster: Configured and activated joint_state_broadcaster
[INFO] [spawner-4]: process has finished cleanly [pid 149286]
[INFO] [launch.user]: Joint States spawned
[INFO] [launch.user]: Joint States spawned
[INFO] [spawner-6]: process started with pid [149664]
[spawner-6] 2025-07-02 17:20:49.741 | robot.spawner_robotnik_base_controller: waiting for service /robot/controller_manager/list_controllers to become available...
[spawner-6] 2025-07-02 17:20:50.142 | robot.spawner_robotnik_base_controller: Loaded robotnik_base_controller
[spawner-6] 2025-07-02 17:20:50.247 | robot.spawner_robotnik_base_controller: Configured and activated robotnik_base_controller
[INFO] [spawner-6]: process has finished cleanly [pid 149664]
[INFO] [rviz2-5]: process has finished cleanly [pid 149287]
^C[WARNING] [launch]: user interrupted with ctrl-c (SIGINT)
[robot_state_publisher-1] 2025-07-02 17:25:14.239 | rclcpp: signal_handler(signum=2)
[parameter_bridge-3] 2025-07-02 17:25:14.239 | rclcpp: signal_handler(signum=2)
[INFO] [robot_state_publisher-1]: process has finished cleanly [pid 149283]
[INFO] [parameter_bridge-3]: process has finished cleanly [pid 149285]

I am also getting similar issue when running ros2 launch robotnik_gazebo_ignition spawn_robot.launch.py robot:=rbrobout.

Relevant log output

[rafa-martin]

Please, check if with PR #37 still happening.

[rafa-martin]

#37 was merged. If the issue persists, feel free to reopen.

[andrejpan]

Tnx for the update, I will re-check it when I have time for simulation again ;)