Problem to simulate in ROS2 Foxy

[Cavalletta98]

Hi, i'm running the command ros2 launch jackal_gazebo jackal_world.launch.py but i'm getting this error: [INFO] [launch]: All log files can be found below /root/.ros/log/2023-02-02-15-13-09-059372-simone-HP-ProBook-635-Aero-G7-Notebook-PC-3021 [INFO] [launch]: Default logging verbosity is set to INFO Task exception was never retrieved future: <Task finished name='Task-2' coro=<LaunchService._process_one_event() done, defined at /opt/ros/foxy/lib/python3.8/site-packages/launch/launch_service.py:226> exception=SubstitutionFailure('executed command failed. Command: /opt/ros/foxy/bin/xacro /opt/ros/foxy/share/jackal_description/urdf/jackal.urdf.xacro is_sim:=true gazebo_controllers:=/opt/ros/foxy/share/jackal_control/config/control.yaml')> Traceback (most recent call last): File "/opt/ros/foxy/lib/python3.8/site-packages/launch/launch_service.py", line 228, in _process_one_event await self.__process_event(next_event) File "/opt/ros/foxy/lib/python3.8/site-packages/launch/launch_service.py", line 248, in __process_event visit_all_entities_and_collect_futures(entity, self.__context)) File "/opt/ros/foxy/lib/python3.8/site-packages/launch/utilities/visit_all_entities_and_collect_futures_impl.py", line 45, in visit_all_entities_and_collect_futures futures_to_return += visit_all_entities_and_collect_futures(sub_entity, context) File "/opt/ros/foxy/lib/python3.8/site-packages/launch/utilities/visit_all_entities_and_collect_futures_impl.py", line 45, in visit_all_entities_and_collect_futures futures_to_return += visit_all_entities_and_collect_futures(sub_entity, context) File "/opt/ros/foxy/lib/python3.8/site-packages/launch/utilities/visit_all_entities_and_collect_futures_impl.py", line 45, in visit_all_entities_and_collect_futures futures_to_return += visit_all_entities_and_collect_futures(sub_entity, context) [Previous line repeated 5 more times] File "/opt/ros/foxy/lib/python3.8/site-packages/launch/utilities/visit_all_entities_and_collect_futures_impl.py", line 38, in visit_all_entities_and_collect_futures sub_entities = entity.visit(context) File "/opt/ros/foxy/lib/python3.8/site-packages/launch/action.py", line 108, in visit return self.execute(context) File "/opt/ros/foxy/lib/python3.8/site-packages/launch_ros/actions/node.py", line 444, in execute self._perform_substitutions(context) File "/opt/ros/foxy/lib/python3.8/site-packages/launch_ros/actions/node.py", line 399, in _perform_substitutions evaluated_parameters = evaluate_parameters(context, self.__parameters) File "/opt/ros/foxy/lib/python3.8/site-packages/launch_ros/utilities/evaluate_parameters.py", line 164, in evaluate_parameters output_params.append(evaluate_parameter_dict(context, param)) File "/opt/ros/foxy/lib/python3.8/site-packages/launch_ros/utilities/evaluate_parameters.py", line 132, in evaluate_parameter_dict evaluated_value = value.evaluate(context) File "/opt/ros/foxy/lib/python3.8/site-packages/launch_ros/parameter_descriptions.py", line 83, in evaluate self.__evaluated_parameter_value = perform_typed_substitution( File "/opt/ros/foxy/lib/python3.8/site-packages/launch/utilities/type_utils.py", line 548, in perform_typed_substitution perform_substitutions(context, cast(List[Substitution], value)), File "/opt/ros/foxy/lib/python3.8/site-packages/launch/utilities/perform_substitutions_impl.py", line 26, in perform_substitutions return ''.join([context.perform_substitution(sub) for sub in subs]) File "/opt/ros/foxy/lib/python3.8/site-packages/launch/utilities/perform_substitutions_impl.py", line 26, in <listcomp> return ''.join([context.perform_substitution(sub) for sub in subs]) File "/opt/ros/foxy/lib/python3.8/site-packages/launch/launch_context.py", line 232, in perform_substitution return substitution.perform(self) File "/opt/ros/foxy/lib/python3.8/site-packages/launch/substitutions/command.py", line 116, in perform raise SubstitutionFailure(f'executed command failed. Command: {command_str}') launch.substitutions.substitution_failure.SubstitutionFailure: executed command failed. Command: /opt/ros/foxy/bin/xacro /opt/ros/foxy/share/jackal_description/urdf/jackal.urdf.xacro is_sim:=true gazebo_controllers:=/opt/ros/foxy/share/jackal_control/config/control.yaml Task exception was never retrieved future: <Task finished name='Task-12' coro=<LaunchService._process_one_event() done, defined at /opt/ros/foxy/lib/python3.8/site-packages/launch/launch_service.py:226> exception=RuntimeError('Signal event received before subprocess transport available.')> Traceback (most recent call last): File "/opt/ros/foxy/lib/python3.8/site-packages/launch/launch_service.py", line 228, in _process_one_event await self.__process_event(next_event) File "/opt/ros/foxy/lib/python3.8/site-packages/launch/launch_service.py", line 248, in __process_event visit_all_entities_and_collect_futures(entity, self.__context)) File "/opt/ros/foxy/lib/python3.8/site-packages/launch/utilities/visit_all_entities_and_collect_futures_impl.py", line 38, in visit_all_entities_and_collect_futures sub_entities = entity.visit(context) File "/opt/ros/foxy/lib/python3.8/site-packages/launch/action.py", line 108, in visit return self.execute(context) File "/opt/ros/foxy/lib/python3.8/site-packages/launch/actions/opaque_function.py", line 75, in execute return self.__function(context, *self.__args, **self.__kwargs) File "/opt/ros/foxy/lib/python3.8/site-packages/launch/actions/execute_process.py", line 443, in __on_signal_process_event raise RuntimeError('Signal event received before subprocess transport available.') RuntimeError: Signal event received before subprocess transport available. [INFO] [gzserver-1]: process started with pid [3024] [INFO] [gzclient-2]: process started with pid [3026] [INFO] [gzserver-1]: sending signal 'SIGINT' to process[gzserver-1] [ERROR] [gzserver-1]: process has died [pid 3024, exit code -2, cmd 'gzserver -s libgazebo_ros_init.so -s libgazebo_ros_factory.so --verbose /opt/ros/foxy/share/jackal_gazebo/worlds/jackal_race.world']. [ERROR] [gzclient-2]: process[gzclient-2] failed to terminate '5' seconds after receiving 'SIGINT', escalating to 'SIGTERM' [INFO] [gzclient-2]: sending signal 'SIGTERM' to process[gzclient-2] [ERROR] [gzclient-2]: process has died [pid 3026, exit code -15, cmd 'gzclient'].

Can someone could help me? Thanks

[tonybaltovski]

Hi @tonybaltovski can you please fill out the issue template with the details about the version etc.? I just ran and it worked.

[Cavalletta98]

I solved,the problem was that the velodyne description package was not installed. Thank you