ROS agent for leaderboard 2.0 has no statistics

[cdefg]

I tried to create an agent in leaderboard 2.0 framework, and start with the shell script to start fromleaderboard_evaluate.py. Everything goes almost right until I stop the statistics manually. I observed that the carla simulator has already got blank because the actors in it have been destroyed, so the object in python got "Nonetype" AttributeError: 'NoneType' object has no attribute 'get_snapshot', and got stucked.

devices: Intel136k + 4070Ti
system: Ubuntu 20.04
api : ROS1Agent

> Stopping the route

========= Results of RouteScenario_0 (repetition 0) ------ FAILURE =========

╒═════════════════════════════════╤═════════════════════╕
│ Start Time                      │ 2023-06-25 13:56:50 │
├─────────────────────────────────┼─────────────────────┤
│ End Time                        │ 2023-06-25 13:58:10 │
├─────────────────────────────────┼─────────────────────┤
│ Duration (System Time)          │ 80.07s              │
├─────────────────────────────────┼─────────────────────┤
│ Duration (Game Time)            │ 97.05s              │
├─────────────────────────────────┼─────────────────────┤
│ Ratio (System Time / Game Time) │ 1.212               │
╘═════════════════════════════════╧═════════════════════╛

╒═══════════════════════╤═════════╤═════════╕
│ Criterion             │ Result  │ Value   │
├───────────────────────┼─────────┼─────────┤
│ RouteCompletionTest   │ FAILURE │ 0.04 %  │
├───────────────────────┼─────────┼─────────┤
│ OutsideRouteLanesTest │ SUCCESS │ 0 %     │
├───────────────────────┼─────────┼─────────┤
│ CollisionTest         │ SUCCESS │ 0 times │
├───────────────────────┼─────────┼─────────┤
│ RunningRedLightTest   │ SUCCESS │ 0 times │
├───────────────────────┼─────────┼─────────┤
│ RunningStopTest       │ SUCCESS │ 0 times │
├───────────────────────┼─────────┼─────────┤
│ MinSpeedTest          │ SUCCESS │ 100 %   │
├───────────────────────┼─────────┼─────────┤
│ InRouteTest           │ SUCCESS │         │
├───────────────────────┼─────────┼─────────┤
│ AgentBlockedTest      │ SUCCESS │         │
├───────────────────────┼─────────┼─────────┤
│ ScenarioTimeoutTest   │ SUCCESS │ 0 times │
├───────────────────────┼─────────┼─────────┤
│ Timeout               │ SUCCESS │         │
╘═══════════════════════╧═════════╧═════════╛

> Registering the route statistics
Exception on start_listening while trying to handle message received.It could indicate a bug in user code on message handlers. Message skipped.
Traceback (most recent call last):
  File "/home/wly/miniconda3/envs/myfuser/lib/python3.8/site-packages/roslibpy/comm/comm_autobahn.py", line 40, in onMessage
    self.on_message(payload)
  File "/home/wly/miniconda3/envs/myfuser/lib/python3.8/site-packages/roslibpy/comm/comm.py", line 38, in on_message
    handler(message)
  File "/home/wly/miniconda3/envs/myfuser/lib/python3.8/site-packages/roslibpy/comm/comm.py", line 85, in _handle_publish
    self.factory.emit(message["topic"], message["msg"])
  File "/home/wly/miniconda3/envs/myfuser/lib/python3.8/site-packages/roslibpy/event_emitter.py", line 164, in emit
    result = f(*args, **kwargs)
  File "/mnt/LinuxData/myfuser/leaderboard/leaderboard/autoagents/ros_base_agent.py", line 208, in _vehicle_control_cmd_callback
    carla_timestamp = CarlaDataProvider.get_world().get_snapshot().timestamp.elapsed_seconds
AttributeError: 'NoneType' object has no attribute 'get_snapshot'
Exception on start_listening while trying to handle message received.It could indicate a bug in user code on message handlers. Message skipped.
Traceback (most recent call last):
  File "/home/wly/miniconda3/envs/myfuser/lib/python3.8/site-packages/roslibpy/comm/comm_autobahn.py", line 40, in onMessage
    self.on_message(payload)
  File "/home/wly/miniconda3/envs/myfuser/lib/python3.8/site-packages/roslibpy/comm/comm.py", line 38, in on_message
    handler(message)
  File "/home/wly/miniconda3/envs/myfuser/lib/python3.8/site-packages/roslibpy/comm/comm.py", line 85, in _handle_publish
    self.factory.emit(message["topic"], message["msg"])
  File "/home/wly/miniconda3/envs/myfuser/lib/python3.8/site-packages/roslibpy/event_emitter.py", line 164, in emit
    result = f(*args, **kwargs)
  File "/mnt/LinuxData/myfuser/leaderboard/leaderboard/autoagents/ros_base_agent.py", line 208, in _vehicle_control_cmd_callback
    carla_timestamp = CarlaDataProvider.get_world().get_snapshot().timestamp.elapsed_seconds
AttributeError: 'NoneType' object has no attribute 'get_snapshot'
Exception on start_listening while trying to handle message received.It could indicate a bug in user code on message handlers. Message skipped.
Traceback (most recent call last):
  File "/home/wly/miniconda3/envs/myfuser/lib/python3.8/site-packages/roslibpy/comm/comm_autobahn.py", line 40, in onMessage
    self.on_message(payload)
  File "/home/wly/miniconda3/envs/myfuser/lib/python3.8/site-packages/roslibpy/comm/comm.py", line 38, in on_message
    handler(message)
  File "/home/wly/miniconda3/envs/myfuser/lib/python3.8/site-packages/roslibpy/comm/comm.py", line 85, in _handle_publish
    self.factory.emit(message["topic"], message["msg"])
  File "/home/wly/miniconda3/envs/myfuser/lib/python3.8/site-packages/roslibpy/event_emitter.py", line 164, in emit
    result = f(*args, **kwargs)
  File "/mnt/LinuxData/myfuser/leaderboard/leaderboard/autoagents/ros_base_agent.py", line 208, in _vehicle_control_cmd_callback
    carla_timestamp = CarlaDataProvider.get_world().get_snapshot().timestamp.elapsed_seconds
AttributeError: 'NoneType' object has no attribute 'get_snapshot'
Exception on start_listening while trying to handle message received.It could indicate a bug in user code on message handlers. Message skipped.
Traceback (most recent call last):
  File "/home/wly/miniconda3/envs/myfuser/lib/python3.8/site-packages/roslibpy/comm/comm_autobahn.py", line 40, in onMessage
    self.on_message(payload)
  File "/home/wly/miniconda3/envs/myfuser/lib/python3.8/site-packages/roslibpy/comm/comm.py", line 38, in on_message
    handler(message)
  File "/home/wly/miniconda3/envs/myfuser/lib/python3.8/site-packages/roslibpy/comm/comm.py", line 85, in _handle_publish
    self.factory.emit(message["topic"], message["msg"])
  File "/home/wly/miniconda3/envs/myfuser/lib/python3.8/site-packages/roslibpy/event_emitter.py", line 164, in emit
    result = f(*args, **kwargs)
  File "/mnt/LinuxData/myfuser/leaderboard/leaderboard/autoagents/ros_base_agent.py", line 208, in _vehicle_control_cmd_callback
    carla_timestamp = CarlaDataProvider.get_world().get_snapshot().timestamp.elapsed_seconds
AttributeError: 'NoneType' object has no attribute 'get_snapshot'
Exception on start_listening while trying to handle message received.It could indicate a bug in user code on message handlers. Message skipped.
Traceback (most recent call last):
  File "/home/wly/miniconda3/envs/myfuser/lib/python3.8/site-packages/roslibpy/comm/comm_autobahn.py", line 40, in onMessage
    self.on_message(payload)
  File "/home/wly/miniconda3/envs/myfuser/lib/python3.8/site-packages/roslibpy/comm/comm.py", line 38, in on_message
    handler(message)
  File "/home/wly/miniconda3/envs/myfuser/lib/python3.8/site-packages/roslibpy/comm/comm.py", line 85, in _handle_publish
    self.factory.emit(message["topic"], message["msg"])
  File "/home/wly/miniconda3/envs/myfuser/lib/python3.8/site-packages/roslibpy/event_emitter.py", line 164, in emit
    result = f(*args, **kwargs)
  File "/mnt/LinuxData/myfuser/leaderboard/leaderboard/autoagents/ros_base_agent.py", line 208, in _vehicle_control_cmd_callback
    carla_timestamp = CarlaDataProvider.get_world().get_snapshot().timestamp.elapsed_seconds
AttributeError: 'NoneType' object has no attribute 'get_snapshot'
Exception on start_listening while trying to handle message received.It could indicate a bug in user code on message handlers. Message skipped.
Traceback (most recent call last):
  File "/home/wly/miniconda3/envs/myfuser/lib/python3.8/site-packages/roslibpy/comm/comm_autobahn.py", line 40, in onMessage
    self.on_message(payload)
  File "/home/wly/miniconda3/envs/myfuser/lib/python3.8/site-packages/roslibpy/comm/comm.py", line 38, in on_message
    handler(message)
  File "/home/wly/miniconda3/envs/myfuser/lib/python3.8/site-packages/roslibpy/comm/comm.py", line 85, in _handle_publish
    self.factory.emit(message["topic"], message["msg"])
  File "/home/wly/miniconda3/envs/myfuser/lib/python3.8/site-packages/roslibpy/event_emitter.py", line 164, in emit
    result = f(*args, **kwargs)
  File "/mnt/LinuxData/myfuser/leaderboard/leaderboard/autoagents/ros_base_agent.py", line 208, in _vehicle_control_cmd_callback
    carla_timestamp = CarlaDataProvider.get_world().get_snapshot().timestamp.elapsed_seconds
AttributeError: 'NoneType' object has no attribute 'get_snapshot'
Exception on start_listening while trying to handle message received.It could indicate a bug in user code on message handlers. Message skipped.
Traceback (most recent call last):
  File "/home/wly/miniconda3/envs/myfuser/lib/python3.8/site-packages/roslibpy/comm/comm_autobahn.py", line 40, in onMessage
    self.on_message(payload)
  File "/home/wly/miniconda3/envs/myfuser/lib/python3.8/site-packages/roslibpy/comm/comm.py", line 38, in on_message
    handler(message)
  File "/home/wly/miniconda3/envs/myfuser/lib/python3.8/site-packages/roslibpy/comm/comm.py", line 85, in _handle_publish
    self.factory.emit(message["topic"], message["msg"])
  File "/home/wly/miniconda3/envs/myfuser/lib/python3.8/site-packages/roslibpy/event_emitter.py", line 164, in emit
    result = f(*args, **kwargs)
  File "/mnt/LinuxData/myfuser/leaderboard/leaderboard/autoagents/ros_base_agent.py", line 208, in _vehicle_control_cmd_callback
    carla_timestamp = CarlaDataProvider.get_world().get_snapshot().timestamp.elapsed_seconds
AttributeError: 'NoneType' object has no attribute 'get_snapshot'
Exception on start_listening while trying to handle message received.It could indicate a bug in user code on message handlers. Message skipped.
Traceback (most recent call last):
  File "/home/wly/miniconda3/envs/myfuser/lib/python3.8/site-packages/roslibpy/comm/comm_autobahn.py", line 40, in onMessage
    self.on_message(payload)
  File "/home/wly/miniconda3/envs/myfuser/lib/python3.8/site-packages/roslibpy/comm/comm.py", line 38, in on_message
    handler(message)
  File "/home/wly/miniconda3/envs/myfuser/lib/python3.8/site-packages/roslibpy/comm/comm.py", line 85, in _handle_publish
    self.factory.emit(message["topic"], message["msg"])
  File "/home/wly/miniconda3/envs/myfuser/lib/python3.8/site-packages/roslibpy/event_emitter.py", line 164, in emit
    result = f(*args, **kwargs)
  File "/mnt/LinuxData/myfuser/leaderboard/leaderboard/autoagents/ros_base_agent.py", line 208, in _vehicle_control_cmd_callback
    carla_timestamp = CarlaDataProvider.get_world().get_snapshot().timestamp.elapsed_seconds
AttributeError: 'NoneType' object has no attribute 'get_snapshot'
Exception on start_listening while trying to handle message received.It could indicate a bug in user code on message handlers. Message skipped.
Traceback (most recent call last):
  File "/home/wly/miniconda3/envs/myfuser/lib/python3.8/site-packages/roslibpy/comm/comm_autobahn.py", line 40, in onMessage
    self.on_message(payload)
  File "/home/wly/miniconda3/envs/myfuser/lib/python3.8/site-packages/roslibpy/comm/comm.py", line 38, in on_message
    handler(message)
  File "/home/wly/miniconda3/envs/myfuser/lib/python3.8/site-packages/roslibpy/comm/comm.py", line 85, in _handle_publish
    self.factory.emit(message["topic"], message["msg"])
  File "/home/wly/miniconda3/envs/myfuser/lib/python3.8/site-packages/roslibpy/event_emitter.py", line 164, in emit
    result = f(*args, **kwargs)
  File "/mnt/LinuxData/myfuser/leaderboard/leaderboard/autoagents/ros_base_agent.py", line 208, in _vehicle_control_cmd_callback
    carla_timestamp = CarlaDataProvider.get_world().get_snapshot().timestamp.elapsed_seconds
AttributeError: 'NoneType' object has no attribute 'get_snapshot'
> Registering the global statistics