fix: perception launcher syntax error

[satoshi-ota]

PR Type

• Bug Fix

Related Links

Description

fix following error:

Task exception was never retrieved                                                                                                                                                                             
future: <Task finished name='Task-2' coro=<LaunchService._process_one_event() done, defined at /opt/ros/galactic/lib/python3.8/site-packages/launch/launch_service.py:226> exception=TypeError('map() must have
 at least two arguments.')>                                                                                                                                                                                    
Traceback (most recent call last):                                                                                                                                                                             
  File "/opt/ros/galactic/lib/python3.8/site-packages/launch/launch_service.py", line 228, in _process_one_event                                                                                               
    await self.__process_event(next_event)                                                                                                                                                                     
  File "/opt/ros/galactic/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/galactic/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/galactic/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/galactic/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 8 more times]                                                                                                                                                                        
  File "/opt/ros/galactic/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/galactic/lib/python3.8/site-packages/launch/action.py", line 108, in visit                                                                                                                    
    return self.execute(context)                                                                                                                                                                               
  File "/opt/ros/galactic/lib/python3.8/site-packages/launch/actions/opaque_function.py", line 75, in execute                                                                                                  
    return self.__function(context, *self.__args, **self.__kwargs)                                                                                                                                             
  File "/home/satoshi/autoware.proj.gsm8/install/perception_launch/share/perception_launch/launch/obstacle_segmentation/ground_segmentation/ground_segmentation.launch.py", line 462, in launch_setup          
    pipeline.create_single_frame_obstacle_segmentation_components(                                                                                                                                             
  File "/home/satoshi/autoware.proj.gsm8/install/perception_launch/share/perception_launch/launch/obstacle_segmentation/ground_segmentation/ground_segmentation.launch.py", line 268, in create_single_frame_ob
stacle_segmentation_components                                                                                                                                                                                 
    + list(map(lambda x: f"{x}/pointcloud"), additional_lidars),                                                                                                                                               
TypeError: map() must have at least two arguments.

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