time-out while waiting for the simulator

[makaveli10]

CARLA 0.9.11 running remotely on ubuntu 20.04 with docker on port 2000 using below command: docker run -it --privileged --gpus all -p 2000:2000 -p 2001:2001 -p 2002:2002 -v /tmp/.X11-unix:/tmp/.X11-unix:rw carlasim/carla:0.9.11 /bin/bash which works perfectly fine and after which I run SDL_VIDEODRIVER=offscreen ./CarlaUE4.sh -nosound for headless carla server start which gives following output with a harmless warning:

4.24.3-0+++UE4+Release-4.24 518 0
Disabling core dumps.
sh: 1: xdg-user-dir: not found

Finally, I start the carlaviz docker container using: docker run -it --network="host" -e CARLAVIZ_HOST_IP=localhost -e CARLA_SERVER_HOST="remote-machine-domain" -e CARLA_SERVER_PORT=2000 mjxu96/carlaviz:0.9.11 which runs fine:

Make sure you have launched the Carla server.
Launching backend.
2022-02-14 11:48:56 [INFO]     Connecting to Carla Server on "remote-machine-domain":2000...
2022-02-14 11:48:56 [INFO]     Connected to Carla Server, Server version is: 0.9.11
Backend launched.
Launching frontend
 * Restarting nginx nginx                                                                                                                                                                                   [ OK ] 
Frontend launched. Please open your browser
2022-02-14 14:41:01 [INFO]     Waiting for a drawing client to connect. Listening to port 8089....
2022-02-14 14:41:01 [INFO]     Waiting for a frontend to connect. Listening to port 8081....

Install carla client: pip install carla-client-unofficial==0.9.11 and run python3 exapmle.py from carlaviz repo which has the below issue:

[INFO] [PAINTER] [2022-02-14 20:11:11,688] : Begin to connect to drawing server at localhost:8089
[INFO] [PAINTER] [2022-02-14 20:11:11,690] : Connected to drawing server at localhost:8089
connecting...
WARNING: Version mismatch detected: You are trying to connect to a simulator that might be incompatible with this API 
WARNING: Client API version     = 0.9.11-1-gf3282be1 
WARNING: Simulator API version  = 0.9.11 
getting world
Traceback (most recent call last):
  File "example.py", line 27, in main
    spawn_points = world.get_map().get_spawn_points()
RuntimeError: time-out of 10000ms while waiting for the simulator, make sure the simulator is ready and connected to "remote-machine-server":2000

Any idea what might be causing this issue?

[mjxu96]

Not sure why backend can connect to the Carla simulator but the example script cannot. Could you check if you can see anything in the browser after Carlaviz starts?

[github-actions[bot]]

This issue is stale because it has been open for 30 days with no activity.

[mjxu96]

Please re-open the issue if you still have the problem in latest CarlaViz.