carla-simulator/ros-bridge

ROS bridge for CARLA Simulator

ros-bridge's Issues

ego_vehicle_control_info messages are not built

Hi,
I ran :

1. roslaunch carla_ros_bridge client.launch
2. manual_control.py
   and I set control_mode: pedal in settings.yaml file

and then on new terminal :
rostopic echo /carla/ego_vehicle/ego_vehicle_control_info
ERROR: Cannot load message class for [carla_ros_bridge/EgoVehicleControlInfo]. Are your messages built?

Creating /carla/ego_vehicle_x topics for several user-controlled cars

Hello,

Before diving into the problem I'm encountering, I must precise that I'm beginner with ROS, I know the basics and understand the purpose of nodes, topics, messages...

So lately, I tried to modify the client.launch and client.py files in order to take measurements for a second car that I control at the same time than the first one. The topics created that interest me are the /carla/ego_vehicle/... but unfortunately, it seems like it can be done for only one car at a time.

It is no surprise that I failed with my lack of experience, I couldn't succeed in creating a second node for a second car, like /carla/ego_vehicle_2/... When I modified client.launch and client.py, there was always a conflict because the services were already registered when I was adding a second client/user-controlled car.

Do somebody know if there is a simple way to modify the files in the /src directory in order to obtain a node for each car with the topics /carla/ego_vehicle/... ?

I'm looking forward to implement at least 3 clients (user controlled cars) and record rosbags of these cars at the same time. A command "rostopic list" with 3 clients would give then something similar to:

/carla/ego_vehicle_1/...
/carla/ego_vehicle_2/...
/carla/ego_vehicle_3/...
/carla/map
/carla/objects
/carla/vehicle_marker
/clock
/rosout
/rosout_agg
/tf

Thanks in advance,

Nathan

Note: Sorry if that seems unclear, I can bring more information if requested ofc

Version mismatch of Simulator API and Client API

Hi,
I am running carla 0.9.1 binary. And I managed to successfully install ros-brigde.
However, when I followed the tests, I met version mismatch issue.

WARNING: Version mismatch detected: You are trying to connect to a simulator that might be incompatible with this API 
WARNING: Client API version:    = 0.9.1-55-g9a16cf9 
WARNING: Simulator API version  = 0.9.1 
terminate called after throwing an instance of 'std::bad_alloc'
  what():  std::bad_alloc
Aborted (core dumped)

Carl installation problems

Hi,

I have installed the egg and the installation seems successful and when I run python spawn command I am getting an ImportError. Please help.

---

xdsim@prescan2:~/carla_0_9_2$ sudo easy_install /home/xdsim/carla_0_9_2/PythonAPI/carla-0.9.2-py3.5-linux-x86_64.egg
Processing carla-0.9.2-py3.5-linux-x86_64.egg
removing '/usr/local/lib/python3.5/dist-packages/carla-0.9.2-py3.5-linux-x86_64.egg' (and everything under it)
creating /usr/local/lib/python3.5/dist-packages/carla-0.9.2-py3.5-linux-x86_64.egg
Extracting carla-0.9.2-py3.5-linux-x86_64.egg to /usr/local/lib/python3.5/dist-packages
carla 0.9.2 is already the active version in easy-install.pth

Installed /usr/local/lib/python3.5/dist-packages/carla-0.9.2-py3.5-linux-x86_64.egg
Processing dependencies for carla==0.9.2
Finished processing dependencies for carla==0.9.2
xdsim@prescan2:~/carla_0_9_2$

xdsim@prescan2:/carla_0_9_2$ python3 spawn_npc.py -n 80
Traceback (most recent call last):
File "spawn_npc.py", line 23, in
import carla
File "/usr/local/lib/python3.5/dist-packages/carla-0.9.2-py3.5-linux-x86_64.egg/carla/init.py", line 7, in
from .libcarla import *
ImportError: libpng16.so.16: cannot open shared object file: No such file or directory
xdsim@prescan2:/carla_0_9_2$

sensor.other.lane_detector Actor not detected by ros-bridge

Hello,

I am using Carla 0.9.3 on Ubuntu 16.04

I can get the ros-bridge to publish the sensor.other.collision data but I am unable to do the same for the sensor.other.lane_detector. Is there some implementation difference between the two sensors? How do I detect the sensor.other.lane_detector actor?

Thanks,
Praneeta

'ascii' codec can't decode byte 0xc2

As I was doing data collection with ros-bridge, I encountered the following problem with the bagfiles.

'ascii' codec can't decode byte 0xc2

This problem is know for messages (https://answers.ros.org/question/240612/rosbag-unicodedecodeerror/?answer=242610#post-id-242610). Quoting the answer:

Just check which of your message definitions are UTF-8 encoded by the command line tool file yourMessageDefinition.msg. If it tells you ASCII text the definition should be OK, if UTF-8 Unicode text it is not.

While debugging I found out that the problem comes specifically from the message /carla/ego_vehicle/ego_vehicle_control_info.

Everything else seems correct. I'll check it out myself and if I find a solution I'll let you know.

ros-bridge with docker

Is there any docker image for this? With kinetic or something. I played around a little bit with the image ros:kinetic-robot but it's cumbersome (I haven't get it to work just yet).

carla TCP connection error

I am trying to run the rostest client to test my installation of carla ros bridge using this command: rostest carla_ros_bridge ros_bridge_client.test
and I get this error: carla.tcp.TCPConnectionError: (localhost:2001) failed to read data: [Errno 4] Interrupted system call

the error seems to be coming from this function: measurements, sensor_data = self.client.read_data()
I get the error message: 'failed to read data' that raises an exception as a TCP error.

any help?

Add some kind of ros test

This is more of just a tracking thing (I'm not sure if this is the right area).

But travis should be ensuring that some level of 'ros_bridge' functionaltiy works on an ongoing basis (at some level of bare minimum support).

For example, from my local work it seems like libpng16 is going to break that functionality (ros packages only want to work with libpng12); so it would be great to learn about these types of issues at PR creation time instead of after merge...

Test control messages have no effect

Hi,

I'm experiencing difficulties with test control commands. I spanned a "hero" vehicle by using manual_control.py and launched the bridge ros package. I'm able to echo the topics posted by the bridge, but publishing to the /carla/ego_vehicle/ackermann_cmd topic doesn't do anything - the car only reacts to the keyboard.
I tried removing everything related to the keyboard in the manual_control.py but no luck - the ackermann_cmd still doesn't do anything.

Let me know what might be the problem.

How to visualize via rviz by activating all sensors

When visualizing the values of the sensors via rvizf, only one sensor is visualized for one scene. Is there a way to visualize all sensor values? For example, if you turn on the lidar sensor, only the point cloud value is visualized and the other camera screen is stopped. Which part of a file does it need to be modified?

Ego vehicle not moving smoothly Carla 0.9.2

On running the script manual_control.py along with carla_ros_bridge the ego vehicle do not run smoothly there is a tremendous amount of lag when controlled from the keyboard.

Also in my script when I spawn a vehicle in autopilot mode and set its role name as "hero", the motion of ego vehicle is not smooth.

But when I do not set the role name of the vehicle everything works perfectly. I could not understand the problem. I tried changing the PID parameters but no improvement.

Lidar data with ros

#32 (comment)
#34

Hi,
I tried steps mentioned in https://github.com/carla-simulator/ros-bridge
to run ros-bridge with compiled version of carla 0.9.3

But i am not understanding how to add lidar to get lidar point cloud data in ros
and also I am getting below error in ros client_with_rivz.launch terminal
after running manaul.py

[INFO] [1551334494.393631, 260.269848]: Reconfigure Request:  speed (0.05, 0.0, 0.5),accel (0.02, 0.0, 0.05),
Traceback (most recent call last):
  File "/home/wipro16/carla_ros_ws/src/ros-bridge-0.9.3/src/carla_ros_bridge/bridge.py", line 157, in _carla_time_tick
    self.update()
  File "/home/wipro16/carla_ros_ws/src/ros-bridge-0.9.3/src/carla_ros_bridge/parent.py", line 159, in update
    actor.update()
  File "/home/wipro16/carla_ros_ws/src/ros-bridge-0.9.3/src/carla_ros_bridge/ego_vehicle.py", line 214, in update
    self.vehicle_control_cycle()
  File "/home/wipro16/carla_ros_ws/src/ros-bridge-0.9.3/src/carla_ros_bridge/ego_vehicle.py", line 450, in vehicle_control_cycle
    self.run_accel_control_loop()
  File "/home/wipro16/carla_ros_ws/src/ros-bridge-0.9.3/src/carla_ros_bridge/ego_vehicle.py", line 567, in run_accel_control_loop
    self.info.current.accel)
  File "/home/wipro16/.local/lib/python2.7/site-packages/simple_pid/PID.py", line 104, in __call__
    self._derivative = -self.Kd * d_input / dt
ZeroDivisionError: float division by zero

and I am able run the vehicle after running manual.py but not ros lidar data.
Can someone help Where I am missing!

System : ubuntu 16, ROS Kinetic, python2.7, pip : pip 8.1.1 from /usr/lib/python2.7/dist-packages (python 2.7)
exported : egg file from pythonAPI before running ros client launch
installed protobuf and simple pid also and libpng16-16

Carla 0.9.3 : AttributeError: 'CarlaRosBridge' object has no attribute 'update_lock'

In carla ros bridge there is a bridge.py script which has following lines in init method:

self.carla_world.on_tick(self._carla_time_tick)
self.update_lock = threading.Lock()

I have following queries:

1. The self.update_lock is being used before initialization inside following method:
   self.carla_world.on_tick(self._carla_time_tick)
   How does this work?

2. When I use pdb debugger for debugging, error occurs after executing following line:
   self.carla_world.on_tick(self._carla_time_tick)

Error - AttributeError: 'CarlaRosBridge' object has no attribute 'update_lock'

But when I run it without debugging, it works fine. How is it happening?

Feature request carla 0.9.2 rosbridge

Multi Client Support in Carla 0.9.x is incredibly useful feature and writing a ros_bridge for the it is also a huge task and I appreciate the efforts. I believe some things could be improved.

1. The actor_id in carla and child id in ros_bridge are different and they both changes everytime I relaunch my python script. This in turn changes my topic names and my frame_id everytime.

2. It is very difficult with current version of ros_bridge to rename the frame_id and topic names without hardcoding them and naming do not follow the ros conventions. (we should have args in launch file to set the names)

3. Only in the case of ego_vehicle the topic name remains same. But what if I don't want to control my vehicle with ros but with another client for example in scenario_runner for junction_crossing. I need to control two vehicle through python client and acquire the sensor data from both vehicle through ros.

4. All the TF transforms in carla 0.92 rosbridge are with respect to the /map frame.
   If we follow the robot TF setup guide for navigation stack in ros: link
   Transforms for the sensors should actually be with respect to the vehicle (if it is attached to the vehicle while spawning in Carla).
   Some of the standard codes in ros could not run because they are expecting TF base_link --> lidar.
   But through carla_ros_bridge we get /map--> /base_link and /map --> lidar. How to get the transform with respect to vehicle??

Running the ros-bridge cause the client delay

System information (version)

• Ubuntu 16.04 64bit
• ROS Kinetic
• CARLA v0.9.2(compiled version)

Problem

When I open the server, by the following command

• ./CarlaUE4.sh -benchmark -fps=10 -carla-server -windowed -ResX=320 -ResY=240

And then I use the manual_control.py to open the client

• python manual_control.py

To here I get the good performance about the simulation
But when I use the ros-bridge

• roslaunch carla_ros_bridge client_with_rviz.launch

And then the client will be slower, when I type the "w", the vehicle will move forward a little and then be
brake.
Sorry my english is not good enough
I want to know is any setting I forgot or can be tested or this is just a normal phenomenon

Carla 0.9.2 ros-bridge automatically dies when I stop my python script

Rosbridge dies with different errors every time I stop [ctrl + c] my python script. A similar thing happens with the scenario_runner package when a scenario finishes. Not sure if it is the desired behaviour ??

terminate called after throwing an instance of 'std::bad_weak_ptr'
  what():  bad_weak_ptr
[carla_ros_bridge-1] process has died [pid 12253, exit code -6, cmd /home/anshul/catkin_ws/src/carla_ros-bridge/src/carla_ros_bridge/client.py __name:=carla_ros_bridge __log:=/home/anshul/.ros/log/0a3dc748-1265-11e9-ae1d-18a905c1f8b8/carla_ros_bridge-1.log].
log file: /home/anshul/.ros/log/0a3dc748-1265-11e9-ae1d-18a905c1f8b8/carla_ros_bridge-1*.log

And then there are few times it doesn't dies automaically. Not sure what is the reason for this.
I also observed that while closing manual_control.py script it never dies automatically. Is there anything I am missing / doing wrong in my script below??

def main():
    actor_list = []
    try:
        client = carla.Client('localhost', 2000)
        client.set_timeout(2.0)
        world = client.get_world()
        spectator = world.get_spectator()
        blueprint_library = world.get_blueprint_library()

        bp = random.choice(blueprint_library.filter('vehicle'))
        bp.set_attribute('role_name', 'hero')
        color = random.choice(bp.get_attribute('color').recommended_values)
        bp.set_attribute('color', color)
        transform = random.choice(world.get_map().get_spawn_points())
        vehicle = world.spawn_actor(bp, transform)
        actor_list.append(vehicle)
        print('created %s' % vehicle.type_id)
        vehicle.set_autopilot(True)

        lidar_bp = blueprint_library.find('sensor.lidar.ray_cast')
        lidar_bp.set_attribute('rotation_frequency', '10')
        lidar_bp.set_attribute('channels', '16')
        lidar_bp.set_attribute('range', '5000')
        lidar_bp.set_attribute('points_per_second', '222000')
        lidar_transform = carla.Transform(carla.Location(x= 0,z=2.4))
        lidar = world.spawn_actor(lidar_bp, lidar_transform, attach_to=vehicle)
        actor_list.append(lidar)
        print('created %s' % lidar.type_id)

        while True:
            time.sleep(10)


    except KeyboardInterrupt:
        print("Interrupted!")

    finally:

        print('destroying actors')
        for actor in actor_list:
            actor.destroy()
        print('done.')


if __name__ == '__main__':

    try:
        main()
    except KeyboardInterrupt:
        pass
    finally:
        print('\ndone.')

rospy.service.ServiceException: service [/carla/ego_vehicle/set_parameters] already registered

where is dynamic_reconfigure client ？

Hello ,Carlateam!
I am reading the code in the carla_ros_bridge,and find that there is dynamic_reconfigure server in the ego_vehicle.py, defined as follows:
self.reconfigure_server = Server( EgoVehicleControlParameterConfig, namespace=self.topic_name(), callback=(lambda config, level: AckermannControlVehicle.reconfigure_pid_parameters( self, config, level)))
But I don't look at the code that sendig request of dynamic reconfigure PID parameters.I noticet that when I run roslaunch carla_ros_bridge client.launch and ./manual_control.py,there is a print information that is Reconfigure Request: speed (0.05, 0.0, 0.5),accel (0.02, 0.0, 0.05).I don't know which code sent the dynamic reconfiguration parameter request.

Error in rostest ros_bridge_client.test

Hello ,
Im running 0.9.1 carla build. Im able to start the server of 0.9.1 .

But when i run the carla test file , Im getting import carla failed. i.e. carla package not found error. please find the error below:

File "/home/aravind/Desktop/Catkin_ws/src/ros-bridge-master/src/carla_ros_bridge/client.py", line 14, in
import carla
ImportError: No module named carla
[Testcase: testtestTopics] ... ok

[ROSTEST]-----------------------------------------------------------------------

[carla_ros_bridge.rosunit-testTopics/test_publish][FAILURE]---------------------
Timed out (10s) of /clock publication.
File "/usr/lib/python2.7/unittest/case.py", line 329, in run
testMethod()
File "/opt/ros/kinetic/share/rostest/nodes/publishtest", line 117, in test_publish
self.fail('Timed out (10s) of /clock publication.')
File "/usr/lib/python2.7/unittest/case.py", line 410, in fail
raise self.failureException(msg)

SUMMARY

• RESULT: FAIL
• TESTS: 1
• ERRORS: 0
• FAILURES: 1

Please help me on this regard. Thanks in advance

AttributeError: 'Image' object has no attribute 'timestamp'

Hey people, I am using Carla0.9.4 and build it from source. When I'm using manual_control.py and launch the client.launch I get the following error:

Traceback (most recent call last):
File "/home/user/ros/catkin_ws_for_carla/src/ros-bridge-master/src/carla_ros_bridge/sensor.py", line 132, in _callback_sensor_data
self.send_tf_msg()
Traceback (most recent call last):
File "/home/user/ros/catkin_ws_for_carla/src/ros-bridge-master/src/carla_ros_bridge/child.py", line 155, in send_tf_msg
File "/home/user/ros/catkin_ws_for_carla/src/ros-bridge-master/src/carla_ros_bridge/sensor.py", line 132, in _callback_sensor_data
tf_msg = self.get_tf_msg()
File "/home/user/ros/catkin_ws_for_carla/src/ros-bridge-master/src/carla_ros_bridge/camera.py", line 141, in get_tf_msg
self.send_tf_msg()
File "/home/user/ros/catkin_ws_for_carla/src/ros-bridge-master/src/carla_ros_bridge/child.py", line 155, in send_tf_msg
tf_msg = self.get_tf_msg()
tf_msg = super(Camera, self).get_tf_msg()
File "/home/user/ros/catkin_ws_for_carla/src/ros-bridge-master/src/carla_ros_bridge/sensor.py", line 147, in get_tf_msg
File "/home/user/ros/catkin_ws_for_carla/src/ros-bridge-master/src/carla_ros_bridge/sensor.py", line 147, in get_tf_msg
tf_msg.header = self.get_msg_header()
tf_msg.header = self.get_msg_header()
File "/home/user/ros/catkin_ws_for_carla/src/ros-bridge-master/src/carla_ros_bridge/sensor.py", line 119, in get_msg_header
File "/home/user/ros/catkin_ws_for_carla/src/ros-bridge-master/src/carla_ros_bridge/sensor.py", line 119, in get_msg_header
header.stamp = rospy.Time.from_sec(self.current_sensor_data.timestamp)
AttributeError: 'GnssEvent' object has no attribute 'timestamp'
header.stamp = rospy.Time.from_sec(self.current_sensor_data.timestamp)
AttributeError: 'Image' object has no attribute 'timestamp'

What am I doing wrong? I am using python 2.7.

Passing cartographic and more information.

I would like to know if there is somewhere available the information about traffict lights, current lane of the vehicle and even weather as a ros message. I ask because this kind of data may be useful for training models.
I run the standard client.launch but it seems the information I'm talking about is not there.

Thanks in advance.

rostest error

I ran rostest carla_ros_bridge ros_bridge_client.test
Following is the error :
INFO] [1544617437.502630]: Trying to connect to localhost:2000
[INFO] [1544617437.504989]: Connected
[INFO] [1544617437.507103]: Starting Episode --> 0
[INFO] [1544617437.512320]: Adding sensor camera_front
[INFO] [1544617437.514650]: Adding sensor camera_depth
[INFO] [1544617438.434262]: Exiting Bridge
Traceback (most recent call last):
raceback (most recent call last):
File "/home/aa/ros/catkin_ws_for_carla/src/carla_ros_bridge/src/carla_ros_bridge/client.py", line 42, in
main()
File "/home/aa/ros/catkin_ws_for_carla/src/carla_ros_bridge/src/carla_ros_bridge/client.py", line 38, in main
carla_ros_bridge.run()
File "/home/aa/ros/catkin_ws_for_carla/src/carla_ros_bridge/src/carla_ros_bridge/bridge.py", line 143, in run
map_handler = MapHandler(scene.map_name)
File "/home/aa/ros/catkin_ws_for_carla/src/carla_ros_bridge/src/carla_ros_bridge/map.py", line 20, in init
self.carla_map = CarlaMap(map_name)
TypeError: init() takes exactly 4 arguments (2 given)
[INFO] [1544617438.437316]: Shutdown requested
[Testcase: testtestTopics] ... ERROR!
ERROR: max time [20.0s] allotted for test [testTopics] of type [rostest/publishtest]
File "/usr/lib/python2.7/unittest/case.py", line 329, in run
testMethod()
File "/opt/ros/melodic/lib/python2.7/dist-packages/rostest/runner.py", line 148, in fn
self.test_parent.run_test(test)
File "/opt/ros/melodic/lib/python2.7/dist-packages/rostest/rostest_parent.py", line 132, in run_test
return self.runner.run_test(test)
File "/opt/ros/melodic/lib/python2.7/dist-packages/roslaunch/launch.py", line 689, in run_test
(test.time_limit, test.test_name, test.package, test.type))

[ROSTEST]-----------------------------------------------------------------------

SUMMARY

• RESULT: FAIL
• TESTS: 0
• ERRORS: 1
• FAILURES: 0

I am using ROS melodic as I am using Debian 9 machine.

Is there a work around for this?

Thanks in advance

Need to publish data at slower rate

Hello,

I am working on application where my subscriber is pretty slow.
I want to publish the topic at lower rates.
Is there a way to do that?

Thanks and regards,
Murali

Rate of publishing is low - all messages updated in vehicle.py

Hello,

I am using ros-brige with CARLA 0.9.3 on Ubuntu 16.04

I noticed that all the messages updated by the Vehicle class have a low publish rate - even lower than depth and image publishing rates!

What is the reason this low rate?

Thanks,
Praneeta

why speed command (unit:m/s)mentioned in the carla_ros_bridge? is different from speed command(unit:km/h) mentioned in the carla window

Hello,everyone.
Now I try to run the launch file which is client.launch mentioned in the carla_ros_bridge.When I
enable manual control,running the example of forward movements as follows:
rostopic pub /ackermann_cmd ackermann_msgs/AckermannDrive "{steering_angle: 0.0, steering_angle_velocity: 0.0, speed: 10, acceleration: 0.0, jerk: 0.0}" -r 10
I found that speed shown as 9km/h in the carla emulator windows,which is different from speed which is set to 10m/s in the command above.Theoretically it should be 36km/h in the carla emulator windows .Why does this happen?

Error in python API client installation

Hello ,
Im using carla 0.9.1 build version . And I need to do this pip2 install -e . --user --upgrade to get python API client in my workspace
But when i do that Im getting this error as shown below
source/libcarla/libcarla.cpp:7:26: fatal error: carla/Memory.h: No such file or directory
compilation terminated.
error: command 'x86_64-linux-gnu-gcc' failed with exit status 1

Any reason why this is happening?

terminate called after throwing an instance of 'std::bad_weak_ptr'

hey guys, I am using Carla 0.9.4 and Ubuntu 16.04
does anyone why this error happen? thanks!!!!
I guess it's due to listening to sensor

Carla ROS bridge: 'SceneDescription' object has no attribute 'map_name'

I am trying to use carla_ros_bridge package Carla version 0.8.4 and ros kinetic

Running the test command fails

rostest carla_ros_bridge ros_bridge_client.test

Output:

Traceback (most recent call last):
  File "/home/anshul/catkin_ws/src/carla_ros_bridge/src/carla_ros_bridge/client.py", line 42, in <module>
    main()
  File "/home/anshul/catkin_ws/src/carla_ros_bridge/src/carla_ros_bridge/client.py", line 38, in main
    carla_ros_bridge.run()
  File "/home/anshul/catkin_ws/src/carla_ros_bridge/src/carla_ros_bridge/bridge.py", line 143, in run
    map_handler = MapHandler(scene.map_name)
AttributeError: 'SceneDescription' object has no attribute 'map_name'
[INFO] [1540391064.654831]: Shutdown requested
[Testcase: testtestTopics] ... ERROR!
ERROR: max time [20.0s] allotted for test [testTopics] of type [rostest/publishtest]
  File "/usr/lib/python2.7/unittest/case.py", line 329, in run
    testMethod()
  File "/opt/ros/kinetic/lib/python2.7/dist-packages/rostest/runner.py", line 148, in fn
    self.test_parent.run_test(test)
  File "/opt/ros/kinetic/lib/python2.7/dist-packages/rostest/rostest_parent.py", line 132, in run_test
    return self.runner.run_test(test)
  File "/opt/ros/kinetic/lib/python2.7/dist-packages/roslaunch/launch.py", line 684, in run_test
    (test.time_limit, test.test_name, test.package, test.type))
--------------------------------------------------------------------------------

[ROSTEST]-----------------------------------------------------------------------


SUMMARY
 * RESULT: FAIL
 * TESTS: 0
 * ERRORS: 1
 * FAILURES: 0

AttributeError: 'SceneDescription' object has no attribute 'map_name'

ego_vehicle_control_info rosmsg

The topic message value of / carla / ego_vehicle / ego_vehicle_control_info is not output properly. When I tried rostopic echo / carla / ego_vehicle / ego_vehicle_control_info, the brake value at the output is being transmitted properly, but the throttle and brake are still fixed at 0.0. How can I fix this to get it to the right value? Which part of the file should I fix?

Deploy ros-bridge as installable package

To simplify the usage of the carla ros bridge, we should find a suitable way to make it installable via package.

This depends on a deployable Carla Python API: carla-simulator/carla#81

It would simplify the usage within Autoware: https://github.com/CPFL/Autoware/issues/2052

crash in python2, ZeroDivisionError: float division by zero

Hi! I use ros and python2. I have tried to use new version carla 0.9.3 and faced next problem:

File "/home/igor/catkin_ws/src/ros-bridge/src/carla_ros_bridge/ego_vehicle.py", line 450, in vehicle_control_cycle
self.run_accel_control_loop()
File "/home/igor/catkin_ws/src/ros-bridge/src/carla_ros_bridge/ego_vehicle.py", line 567, in run_accel_control_loop
self.info.current.accel)
File "/home/igor/.local/lib/python2.7/site-packages/simple_pid/PID.py", line 91, in call
self._derivative = -self.Kd * d_input / dt
ZeroDivisionError: float division by zero

I found, that it is because of new version simple-pid 0.1.5
For now i have solved it by downgrading to simple-pid 0.1.4
have a nice day = )

Need to publish data at a faster rate

Hello,

I am working on application where my subscriber is pretty faster.
I want to publish the gnss topic at 100hz rates.
Is there a way to do that?
It seems that I need to adjust carla simulation main core.
According to the last issue, tick interval attribute can be related to my issue.

Where could I find to adjust tick interval of gnss sensor message in carla simulation code?
and how could I adjust frequency of the topic in rosbridge code.

Although I modify rospy.rate frequency from 200hz to 1000hz in run method function of bridge.py file, the rate of frequency of the topic has not been changed.

Thanks and regards,

Error when launching Carla with ROS

System Specifications

• OS : Ubuntu 18.04.1 LTS (Bionic Beaver) 64bit
• ROS: ROS Melodic
• CARLA: 0.9.3

Error
I am trying to open CARLA using ROS but I faced this error when writing this command

roslaunch carla_ros_bridge client.launch

process[carla_ros_bridge-2]: started with pid [21539] /home/user/.local/lib/python2.7/site-packages/simple_pid/PID.py:22: UserWarning: time.monotonic() not available in python < 3.3, using time.time() as fallback warnings.warn('time.monotonic() not available in python < 3.3, using time.time() as fallback') Traceback (most recent call last): File "/home/user/ros/catkin_ws_for_carla/src/src/client.py", line 16, in <module> from carla_ros_bridge.bridge import CarlaRosBridge File "/home/user/ros/catkin_ws_for_carla/src/src/carla_ros_bridge/bridge.py", line 20, in <module> from carla_ros_bridge.parent import Parent File "/home/user/ros/catkin_ws_for_carla/src/src/carla_ros_bridge/parent.py", line 254, in <module> from carla_ros_bridge.vehicle import Vehicle # pylint: disable=wrong-import-position File "/home/user/ros/catkin_ws_for_carla/src/src/carla_ros_bridge/vehicle.py", line 174, in <module> from carla_ros_bridge.ego_vehicle import EgoVehicle # pylint: disable=wrong-import-position File "/home/user/ros/catkin_ws_for_carla/src/src/carla_ros_bridge/ego_vehicle.py", line 27, in <module> from carla_ros_bridge.msg import CarlaVehicleControl # pylint: disable=no-name-in-module,import-error ImportError: No module named msg

ros_bridge: control effect is not ideal

Hello,Carla team!
Thanks for making a good simulator.When I run the control module，finding that speed controller cannot maintain constant speed .In addition,I want to know if there is a horizontal control module in the ros_bridge.

ros-bridge linter causes import error on Vehicle

Ubuntu 16.04, ROS Kinetic, CARLA 0.9.2.

After checking out, I ran "check.sh" to see what it turns up.

Then, when running CARLA and trying to start up the ROS bridge, per instructions on the README, I get the following error:

Traceback (most recent call last):
  File "/home/ubuntu/catkin_ws/src/ros-bridge/src/carla_ros_bridge/client.py", line 16, in <module>
    from carla_ros_bridge.bridge import CarlaRosBridge
  File "/home/ubuntu/catkin_ws/src/ros-bridge/src/carla_ros_bridge/bridge.py", line 20, in <module>
    from carla_ros_bridge.parent import Parent
  File "/home/ubuntu/catkin_ws/src/ros-bridge/src/carla_ros_bridge/parent.py", line 8, in <module>
    from carla_ros_bridge.vehicle import Vehicle     # pylint: disable=wrong-import-position
  File "/home/ubuntu/catkin_ws/src/ros-bridge/src/carla_ros_bridge/vehicle.py", line 8, in <module>
    from carla_ros_bridge.ego_vehicle import EgoVehicle  # pylint: disable=wrong-import-position
  File "/home/ubuntu/catkin_ws/src/ros-bridge/src/carla_ros_bridge/ego_vehicle.py", line 25, in <module>
    from carla_ros_bridge.vehicle import Vehicle
ImportError: cannot import name Vehicle

Git shows a bunch of files changed:

$ git status
	modified:   src/carla_ros_bridge/client.py
	modified:   src/carla_ros_bridge/ego_vehicle.py
	modified:   src/carla_ros_bridge/parent.py
	modified:   src/carla_ros_bridge/physics.py
	modified:   src/carla_ros_bridge/sensor.py
	modified:   src/carla_ros_bridge/vehicle.py
$ git diff src/carla_ros_bridge/ego_vehicle.py
diff --git a/src/carla_ros_bridge/ego_vehicle.py b/src/carla_ros_bridge/ego_vehicle.py
index c1bbe83..bb4f8b3 100644
--- a/src/carla_ros_bridge/ego_vehicle.py
+++ b/src/carla_ros_bridge/ego_vehicle.py
@@ -165,10 +165,9 @@ class EgoVehicle(Vehicle):
         # send control command out, if there is a ROS control publisher
         ros_control_topic = rospy.get_published_topics(namespace='/')
         if (any('/carla/ego_vehicle/ackermann_cmd' == x[0] for x in ros_control_topic) or
-            any('/carla/ego_vehicle/vehicle_control_cmd' == x[0] for x in ros_control_topic)):
+                any('/carla/ego_vehicle/vehicle_control_cmd' == x[0] for x in ros_control_topic)):
             self.carla_actor.apply_control(vehicle_control)
 
-
     def update_current_values(self):
         """
         Function to update vehicle control current values.
$ git diff src/carla_ros_bridge/vehicle.py
diff --git a/src/carla_ros_bridge/vehicle.py b/src/carla_ros_bridge/vehicle.py
index 7e2e0bb..604613f 100644
--- a/src/carla_ros_bridge/vehicle.py
+++ b/src/carla_ros_bridge/vehicle.py
@@ -5,6 +5,7 @@
 #
 # authors: Bernd Gassmann ([email protected])
 #
+from carla_ros_bridge.ego_vehicle import EgoVehicle  # pylint: disable=wrong-import-position
 """
 Classes to handle Carla vehicles
 """
@@ -170,5 +171,5 @@ class Vehicle(Actor):
 
         self.publish_ros_message('/carla/objects', vehicle_object)
 
+
 # this import has to be at the end to resolve cyclic dependency
-from carla_ros_bridge.ego_vehicle import EgoVehicle  # pylint: disable=wrong-import-position

ImportError: No module named cv_bridge

Hi, I am trying to use carla_ros_bridge on precompiled 0.8.4 my carla_ros_bridge and PythonClient came from the latest branch. When I ran a test it gives me this error.

[ROSUNIT] Outputting test results to /home/overlapjho/.ros/test_results/carla_ros_bridge/rostest-test_ros_bridge_client.xml
Traceback (most recent call last):
  File "/home/overlapjho/ros/catkin_ws_for_carla/src/carla_ros_bridge/src/carla_ros_bridge/client.py", line 9, in <module>
    from carla_ros_bridge.bridge import CarlaRosBridge
  File "/home/overlapjho/ros/catkin_ws_for_carla/src/carla_ros_bridge/src/carla_ros_bridge/bridge.py", line 16, in <module>
    from carla_ros_bridge.sensors import CameraHandler, LidarHandler
  File "/home/overlapjho/ros/catkin_ws_for_carla/src/carla_ros_bridge/src/carla_ros_bridge/sensors.py", line 8, in <module>
    from cv_bridge import CvBridge
ImportError: No module named cv_bridge
[Testcase: testtestTopics] ... ERROR!
ERROR: max time [20.0s] allotted for test [testTopics] of type [rostest/publishtest]
  File "/usr/lib/python2.7/unittest/case.py", line 329, in run
    testMethod()
  File "/opt/ros/kinetic/lib/python2.7/dist-packages/rostest/runner.py", line 148, in fn
    self.test_parent.run_test(test)
  File "/opt/ros/kinetic/lib/python2.7/dist-packages/rostest/rostest_parent.py", line 132, in run_test
    return self.runner.run_test(test)
  File "/opt/ros/kinetic/lib/python2.7/dist-packages/roslaunch/launch.py", line 684, in run_test
    (test.time_limit, test.test_name, test.package, test.type))
--------------------------------------------------------------------------------

[ROSTEST]-----------------------------------------------------------------------


SUMMARY
 * RESULT: FAIL
 * TESTS: 0
 * ERRORS: 1
 * FAILURES: 0

Links to wrong Ros bridge

HI,

I am trying to send the image saved from my camera (using our existing programs in Carla environment) on the ego vehicle across to ROS environment.

1. How can I include that in my python code ?

2. When I try to run roslaunch command -
   roslaunch carla_ros_bridge carla_ros_bridge.launch

roslaunch is trying to access a previously built ros brige.. How do I point It to the newly built ros bridge ?

I am using Carla 0.9.2 and ROS Lunar

"/home/xds/catkin_ws/src/carla_ros_bridge1/src/carla_ros_bridge/client.py" from the error message listed below is the wrong path.

Correct path should be -
"/home/xds/ros/carla_ros_bridge/src/carla_ros_bridge/client.py" which is the client.py from the new Carla bridge. How do I correct the link ?

My paths -
Path to Carla is - /home/xds/Carla_0_9_2/
Path to ros bridge - /home/xds/ros/Carla_ros_bridge/
Path to catkin workspace where my ros program is - /home/xds/catkin_ws_carla/

Any ideas please !

Thanks,

xds@prescan2:~/ros/catkin_ws_carla$ roslaunch carla_ros_bridge client.launch
WARNING: Package name "ClosedLoopRealtime" does not follow the naming conventions. It should start with a lower case letter and only contain lower case letters, digits, underscores, and dashes.
WARNING: Package name "WMGCarmakerCameraRSI" does not follow the naming conventions. It should start with a lower case letter and only contain lower case letters, digits, underscores, and dashes.
WARNING: Package name "ClosedLoopRealtimeACSToPod" does not follow the naming conventions. It should start with a lower case letter and only contain lower case letters, digits, underscores, and dashes.
... logging to /home/xds/.ros/log/b098ecea-41c1-11e9-ad39-246e964d427a/roslaunch-prescan2-14824.log
Checking log directory for disk usage. This may take awhile.
Press Ctrl-C to interrupt
Done checking log file disk usage. Usage is <1GB.

WARNING: Package name "ClosedLoopRealtime" does not follow the naming conventions. It should start with a lower case letter and only contain lower case letters, digits, underscores, and dashes.
WARNING: Package name "WMGCarmakerCameraRSI" does not follow the naming conventions. It should start with a lower case letter and only contain lower case letters, digits, underscores, and dashes.
WARNING: Package name "ClosedLoopRealtimeACSToPod" does not follow the naming conventions. It should start with a lower case letter and only contain lower case letters, digits, underscores, and dashes.
started roslaunch server http://prescan2:36485/

SUMMARY

PARAMETERS

• /carla/Episodes: 2
• /carla/Framesperepisode: -1
• /carla/NumberOfPedestrians: 10
• /carla/NumberOfVehicles: 30
• /carla/QualityLevel: Low
• /carla/SendNonPlayerAgentsInfo: True
• /carla/SynchronousMode: True
• /carla/WeatherId: 1
• /carla/host: localhost
• /carla/port: 2000
• /carla/sensors/camera_depth/SensorType: CAMERA
• /carla/sensors/camera_depth/carla_settings/FOV: 90
• /carla/sensors/camera_depth/carla_settings/ImageSizeX: 320
• /carla/sensors/camera_depth/carla_settings/ImageSizeY: 240
• /carla/sensors/camera_depth/carla_settings/PositionX: 1.8
• /carla/sensors/camera_depth/carla_settings/PositionY: 0
• /carla/sensors/camera_depth/carla_settings/PositionZ: 1.3
• /carla/sensors/camera_depth/carla_settings/PostProcessing: Depth
• /carla/sensors/camera_depth/carla_settings/RotationPitch: 0
• /carla/sensors/camera_depth/carla_settings/RotationRoll: 0
• /carla/sensors/camera_depth/carla_settings/RotationYaw: 0
• /carla/sensors/camera_front/SensorType: CAMERA
• /carla/sensors/camera_front/carla_settings/FOV: 90
• /carla/sensors/camera_front/carla_settings/ImageSizeX: 320
• /carla/sensors/camera_front/carla_settings/ImageSizeY: 240
• /carla/sensors/camera_front/carla_settings/PositionX: 1.8
• /carla/sensors/camera_front/carla_settings/PositionY: 0
• /carla/sensors/camera_front/carla_settings/PositionZ: 1.3
• /carla/sensors/camera_front/carla_settings/PostProcessing: SceneFinal
• /carla/sensors/camera_front/carla_settings/RotationPitch: 0
• /carla/sensors/camera_front/carla_settings/RotationRoll: 0
• /carla/sensors/camera_front/carla_settings/RotationYaw: 0
• /carla_autopilot: True
• /curr_episode:
• /rosbag_fname:
• /rosdistro: lunar
• /rosversion: 1.13.7

NODES
/
carla_ros_bridge (carla_ros_bridge/client.py)

ROS_MASTER_URI=http://localhost:11311

WARNING: Package name "ClosedLoopRealtime" does not follow the naming conventions. It should start with a lower case letter and only contain lower case letters, digits, underscores, and dashes.
WARNING: Package name "WMGCarmakerCameraRSI" does not follow the naming conventions. It should start with a lower case letter and only contain lower case letters, digits, underscores, and dashes.
WARNING: Package name "ClosedLoopRealtimeACSToPod" does not follow the naming conventions. It should start with a lower case letter and only contain lower case letters, digits, underscores, and dashes.
process[carla_ros_bridge-1]: started with pid [14841]
Traceback (most recent call last):
File "/home/xds/catkin_ws/src/carla_ros_bridge1/src/carla_ros_bridge/client.py", line 8, in
from carla.client import make_carla_client
File "/home/xds/carla_0_9_2/PythonAPI/carla-0.9.2-py3.5-linux-x86_64.egg/carla/init.py", line 7, in

File "/home/xds/carla_0_9_2/PythonAPI/carla-0.9.2-py3.5-linux-x86_64.egg/carla/libcarla.py", line 7, in
File "/home/xds/carla_0_9_2/PythonAPI/carla-0.9.2-py3.5-linux-x86_64.egg/carla/libcarla.py", line 6, in bootstrap
ImportError: /home/xds/.cache/Python-Eggs/carla-0.9.2-py3.5-linux-x86_64.egg-tmp/carla/libcarla.cpython-35m-x86_64-linux-gnu.so: undefined symbol: PyUnicode_AsUTF8String
[carla_ros_bridge-1] process has died [pid 14841, exit code 1, cmd /home/xds/catkin_ws/src/carla_ros_bridge1/src/carla_ros_bridge/client.py __name:=carla_ros_bridge __log:=/home/xds/.ros/log/b098ecea-41c1-11e9-ad39-246e964d427a/carla_ros_bridge-1.log].
log file: /home/xds/.ros/log/b098ecea-41c1-11e9-ad39-246e964dxds@prescan2:~$ rostopic pub /carla/ego_vehicle_cmd carla_ros_bridge/CarlaEgoVehicleControl "{throttle; 1.0, steer: 0.0}" -r 10
The program 'rostopic' is currently not installed. You can install it by typing:
sudo apt install python-rostopic

add IMU sensor

Hi,
Is there any plan to simulate a IMU sensor in this ros_brdige?

Thx

Issue with ROS not publishing any data. client_with_rviz displaying nothing.

Hello!

I am having trouble running client_with_rviz.launch. After following the tutorial and running the commands, rviz opens up and nothing shows up.

Furthermore, it seems like the client has connected to the server. Debugging with ROS shows that there is no data being published under these topics.

Thank you and Merry Christmas!

undefined symbol: PyUnicode_AsUTF8String

Hi Guys,

I am facing the below issue while running roslaunch carla_ros_bridge client.launch.

I have updated the PYTHONPATH as mentioned in the RlEADME and also I am getting success if I run python -c 'import carla;print("Success")'.

Traceback (most recent call last):
  File "/home/user/ros/catkin_ws_for_carla/src/src/carla_ros_bridge/client.py", line 14, in <module>
    import carla
  File "/home/kishor/Carla_Sim/PythonAPI/carla-0.9.2-py3.5-linux-x86_64.egg/carla/__init__.py", line 7, in <module>
    
  File "/home/kishor/Carla_Sim/PythonAPI/carla-0.9.2-py3.5-linux-x86_64.egg/carla/libcarla.py", line 7, in <module>
  File "/home/kishor/Carla_Sim/PythonAPI/carla-0.9.2-py3.5-linux-x86_64.egg/carla/libcarla.py", line 6, in __bootstrap__
ImportError: /home/kishor/.cache/Python-Eggs/carla-0.9.2-py3.5-linux-x86_64.egg-tmp/carla/libcarla.cpython-35m-x86_64-linux-gnu.so: undefined symbol: PyUnicode_AsUTF8String
[carla_ros_bridge-2] process has died [pid 23024, exit code 1, cmd /home/kishor/ros/catkin_ws_for_carla/src/src/carla_ros_bridge/client.py __name:=carla_ros_bridge __log:=/home/kishor/.ros/log/bf8f277e-1f0b-11e9-8882-e4b97a000225/carla_ros_bridge-2.log].
log file: /home/kishor/.ros/log/bf8f277e-1f0b-11e9-8882-e4b97a000225/carla_ros_bridge-2*.log

Previously I had faced the similar issue, I was able to fix and posted the fix here. But now I am not able to see the post.

Could you please help me to fix the issue.

Thank you,
KK

Incorrect visualization of LiDAR

System information (version)

• Ubuntu 16.04 64bit
• ROS Kinetic
• CARLA v0.9.2(compiled version)
• ros-bridge b054cee

Detailed description

I tried to use ros-bridge and visualize LiDAR data using rviz.
But, I think that visualization of LiDAR data is incorrect.

It seems that the result of visualization is correct when the vehicle stops.

But, it seems that the result of visualization is incorrect and points of past frame remain when the vehicle moves.

I could not determine the problem which is the problem between CARLA and ros-bridge.

Steps to reproduce

CarlaUE4

$ cd ${CARLA_ROOT}
$ ./CarlaUE4.sh -carla-server -windowed -ResX=320 -ResY=240

carla_ros_bridge

$ source ~/ros/catkin_ws_for_carla/devel/setup.bash
$ roslaunch carla_ros_bridge client_with_rviz.launch

manual_control

$ cd ${CARLA_ROOT}
$ python manual_control.py

And, I selected LiDAR as sensor.

ImportError: cannot import name Vehicle

Hey,

I have the following error while launching the bridge node:

  File "/home/vadbut/catkin_ws/src/ros-bridge/src/carla_ros_bridge/ego_vehicle.py", line 25, in <module>
    from carla_ros_bridge import Vehicle
ImportError: cannot import name Vehicle

Simple stuff like sourcing setup.bash and rebuilding the module doesn't help. I use python 2.7. I tried rearranging the imports and it seems like everything else is being imported perfectly fine except for the Vehicle.

Thanks

'Actor' object has no attribute 'attributes'

I am having an error with rostest for new ros_bridge for carla_0.91

rostest carla_ros_bridge ros_bridge_client.test
... logging to /home/anshul/.ros/log/rostest-encre-454.log
[ROSUNIT] Outputting test results to /home/anshul/.ros/test_results/carla_ros_bridge/rostest-test_ros_bridge_client.xml
[INFO] [1545042396.298388, 0.000000]: Trying to connect to localhost:2000
[INFO] [1545042396.345882, 0.000000]: Connected
Traceback (most recent call last):
  File "/home/anshul/enable-s3/catkin_ws_carla/src/ros-bridge/src/carla_ros_bridge/bridge.py", line 155, in _carla_time_tick
    self.update()
  File "/home/anshul/enable-s3/catkin_ws_carla/src/ros-bridge/src/carla_ros_bridge/parent.py", line 156, in update
    self._create_new_children()
  File "/home/anshul/enable-s3/catkin_ws_carla/src/ros-bridge/src/carla_ros_bridge/parent.py", line 107, in _create_new_children
    carla_actor=actor, parent=self)
  File "/home/anshul/enable-s3/catkin_ws_carla/src/ros-bridge/src/carla_ros_bridge/spectator.py", line 40, in __init__
    append_role_name_topic_postfix=append_role_name_topic_postfix)  # pylint: disable=line-too-long
  File "/home/anshul/enable-s3/catkin_ws_carla/src/ros-bridge/src/carla_ros_bridge/actor.py", line 46, in __init__
    if carla_actor.attributes.has_key('role_name'):
AttributeError: 'Actor' object has no attribute 'attributes'
[INFO] [1545042405.890883, 0.000000]: Shutdown requested
[Testcase: testtestTopics] ... ok

[ROSTEST]-----------------------------------------------------------------------

[carla_ros_bridge.rosunit-testTopics/test_publish][FAILURE]---------------------
Timed out (10s) of /clock publication.
  File "/usr/lib/python2.7/unittest/case.py", line 329, in run
    testMethod()
  File "/opt/ros/kinetic/share/rostest/nodes/publishtest", line 117, in test_publish
    self.fail('Timed out (10s) of /clock publication.')
  File "/usr/lib/python2.7/unittest/case.py", line 410, in fail
    raise self.failureException(msg)
--------------------------------------------------------------------------------


SUMMARY
 * RESULT: FAIL
 * TESTS: 1
 * ERRORS: 0
 * FAILURES: 1

Pedestrian control similar to vehicle control

Hello, I am using Carla since recently as an application where pedestrians and a ground robot can be controlled. Therefore I'd like to know if it is possible to control the pedestrian movements similarly to how the vehicles are controlled (ackerman messages). so far, I've been able to walk the pedestrians with the carla.Transform and walker.Control and I'm interested in achieving the control in similar fashion as with the ackerman messages

Thanks for the attention and best regards!

carla_ros_bridge error

I am trying to link carla with ros through this link
https://github.com/carla-simulator/carla/tree/master/carla_ros_bridge

However I get and error when testing the installation of carla_ros_bridge when I run the test
rostest carla_ros_bridge ros_bridge_client.test

this is what comes up:
[ros_bridge_client.test] is neither a launch file in package [carla_ros_bridge] nor is [carla_ros_bridge] a launch file name

even though I tried to source it and still fails.
Any Help??

Add dynamic capabilities to vehicle_info message

It doesn't look like information about the ego vehicles dynamic capabilities are transmitted to ROS. Would it possible to add them to the vehicle info message? Things like min/max bounds on speed/acceleration/jerk. I know that exact bounds can be tricky due to state dependency, but even just having approximate global bounds would be useful. What I'd like is primarily a sanity check: if my controller wants to command the vehicle to accelerate with 999m/s^2, I'd like to know that that's not physically possible.

Carla got crash when building iup ROS bridge

Hello,

I have followed the steps in Readme.md to build up the envrionment.

When I in the stage of ROS bridge, the terminal will get crash after executing cmd './CarlaUE4 -carla-server -windowed -ResX=320 -ResY=240'.

I have also attached the crash info. generated from Carla.
Crash.zip
could you help to check?

the following is the error stack:
`[2019.01.10-12.38.08:100][ 0]LogAIModule: Creating AISystem for world Town03
[2019.01.10-12.38.09:254][ 0]LogLoad: Game class is 'TheNewCarlaGameMode_C'
[2019.01.10-12.38.09:380][ 0]LogWorld: Bringing World /Game/Carla/Maps/Town03.Town03 up for play (max tick rate 0) at 2019.01.10-20.38.09
[2019.01.10-12.38.09:400][ 0]LogWorld: Bringing up level for play took: 0.132154
[2019.01.10-12.38.09:414][ 0]LogCarlaServer: Initializing rpc-server at port 2000
[2019.01.10-12.38.10:610][ 0]LogLinux: === Critical error: ===
Unhandled Exception: SIGABRT: abort() called

[2019.01.10-12.38.10:610][ 0]LogLinux: Fatal error!

0x00000000035baba5 FLinuxPlatformStackWalk::CaptureStackBackTrace(unsigned long long*, unsigned int, void*) [/var/lib/jenkins/UnrealEngine_4.19/Engine/Source/Runtime/Core/Private/Linux/LinuxPlatformStackWalk.cpp:1038]
0x000000000349fee5 FGenericPlatformStackWalk::StackWalkAndDump(char*, unsigned long, int, void*) [/var/lib/jenkins/UnrealEngine_4.19/Engine/Source/Runtime/Core/Private/GenericPlatform/GenericPlatformStackWalk.cpp:171]
0x00000000035795e0 FLinuxCrashContext::CaptureStackTrace() [Runtime/Core/Public/Containers/ContainerAllocationPolicies.h:332]
0x00000000063a645b CommonLinuxCrashHandler(FGenericCrashContext const&) [/var/lib/jenkins/UnrealEngine_4.19/Engine/Source/Runtime/Linux/LinuxCommonStartup/Private/LinuxCommonStartup.cpp:37]
0x000000000357aa43 PlatformCrashHandler(int, siginfo_t*, void*) [/var/lib/jenkins/UnrealEngine_4.19/Engine/Source/Runtime/Core/Private/Linux/LinuxPlatformCrashContext.cpp:521]
0x00007fec633d3390 /lib/x86_64-linux-gnu/libpthread.so.0(+0x11390) [0x7fec633d3390]
0x00007fec62394428 /lib/x86_64-linux-gnu/libc.so.6(gsignal+0x38) [0x7fec62394428]
0x00007fec6239602a /lib/x86_64-linux-gnu/libc.so.6(abort+0x16a) [0x7fec6239602a]
0x00000000065a082c ./CarlaUE4() [0x65a082c]
0x00000000065a0641 ./CarlaUE4() [0x65a0641]
0x00000000065a0333 ./CarlaUE4() [0x65a0333]
0x00000000065a2426 ./CarlaUE4() [0x65a2426]
0x0000000006c756ab ./CarlaUE4() [0x6c756ab]
0x0000000006c7562c clmdep_asio::detail::do_throw_error(std::__1::error_code const&, char const*)
0x0000000006c755e2 clmdep_asio::detail::throw_error(std::__1::error_code const&, char const*)
0x0000000006c74f99 clmdep_asio::basic_socket_acceptor<clmdep_asio::ip::tcp, clmdep_asio::socket_acceptor_service<clmdep_asio::ip::tcp> >::basic_socket_acceptor(clmdep_asio::io_service&, clmdep_asio::ip::basic_endpoint<clmdep_asio::ip::tcp> const&, bool)
0x0000000006c73062 rpc::server::impl::impl(rpc::server*, unsigned short)
0x0000000006c70210 rpc::server::server(unsigned short)
0x0000000006c385c3 FTheNewCarlaServer::FPimpl::FPimpl(unsigned short) [/var/lib/jenkins/workspace/carla_0.9.1-C6GE5LCTAJLPLH6VLVPYCJ73A6NDPEZ2O3RLR6D7N6LYCMRH557A/Unreal/CarlaUE4/Plugins/Carla/CarlaDependencies/include/carla/rpc/Server.h:82]
0x0000000006bc77bb FTheNewCarlaServer::Start(unsigned short) [Runtime/Core/Public/Templates/UniquePtr.h:149]
0x0000000006bc7720 UCarlaGameInstance::NotifyBeginEpisode(UCarlaEpisode&) [/var/lib/jenkins/workspace/carla_0.9.1-C6GE5LCTAJLPLH6VLVPYCJ73A6NDPEZ2O3RLR6D7N6LYCMRH557A/Unreal/CarlaUE4/Plugins/Carla/Source/Carla/Game/CarlaGameInstance.cpp:18]
0x00000000052d4f2d AActor::DispatchBeginPlay() [Runtime/Core/Public/Containers/UnrealString.h:59]
0x000000000609533d AWorldSettings::NotifyBeginPlay() [Runtime/Core/Public/UObject/NameTypes.h:699]
0x00000000057faf0c AGameStateBase::HandleBeginPlay() [/var/lib/jenkins/UnrealEngine_4.19/Engine/Source/Runtime/Engine/Private/GameStateBase.cpp:177]
0x0000000006085379 Unknown [Runtime/Engine/Classes/Engine/World.h:1876]
0x0000000005f99c0a UEngine::LoadMap(FWorldContext&, FURL, UPendingNetGame*, FString&) [Runtime/Engine/Classes/Engine/Engine.h:375]
0x0000000005f96013 UEngine::Browse(FWorldContext&, FURL, FString&) [/var/lib/jenkins/UnrealEngine_4.19/Engine/Source/Runtime/Engine/Private/UnrealEngine.cpp:10373]
0x00000000057dee4b UGameInstance::StartGameInstance() [/var/lib/jenkins/UnrealEngine_4.19/Engine/Source/Runtime/Engine/Private/GameInstance.cpp:436]
0x00000000057af8ae UGameEngine::Start() [/var/lib/jenkins/UnrealEngine_4.19/Engine/Source/Runtime/Engine/Private/GameEngine.cpp:751]
0x0000000003449b96 FEngineLoop::Init() [/var/lib/jenkins/UnrealEngine_4.19/Engine/Source/Runtime/Launch/Private/LaunchEngineLoop.cpp:2759]
0x0000000003451fc7 GuardedMain(wchar_t const*) [/var/lib/jenkins/UnrealEngine_4.19/Engine/Source/Runtime/Launch/Private/Launch.cpp:52]
0x00000000063a6eb0 CommonLinuxMain(int, char**, int ()(wchar_t const)) [/var/lib/jenkins/UnrealEngine_4.19/Engine/Source/Runtime/Linux/LinuxCommonStartup/Private/LinuxCommonStartup.cpp:236]
0x00007fec6237f830 /lib/x86_64-linux-gnu/libc.so.6(__libc_start_main+0xf0) [0x7fec6237f830]
0x0000000003444029 ./CarlaUE4(_start+0x29) [0x3444029]`

Import Error with agents package [carla_waypoint_publisher]

Good evening. I installed the "agents" package with the command:

• sudo pip install agents
  But for some reason my Pycharm says that this package does not have a navigation folder.
  

Did i install the right package? Or do i have to installed the package some other way?

Thank you

Pedro Silva - 72645

Multiple sensor values for the same timestamp

Hello,

There are multiple sensor values in the bag file for the same header.stamp. I can't seem to solve this. Any ideas?

Ubuntu 16.04; Carla 0.9.3

Thanks,
Praneeta