I am having a problem with the Vacuum Cleaner exercise.
The Docker container runs correctly and HAL starts without errors. The application reaches the “application_running” state, and my code executes (I can see print outputs in the terminal).
However, the robot does not appear in the simulator, and no sensor data is received. For example, the bumper data never changes, and no collisions are detected, even after running the program for a long time.
This suggests that the robot is not being instantiated in the simulation environment. The GUI repeatedly tries to start (“gui start” messages), but the robot model never loads.
I have already tried:
- Restarting Docker and cleaning containers
- Using different browsers (Chrome and Firefox)
- Opening the exercise in incognito mode
- Switching between different exercises (the Follow Line car works correctly)
- Waiting for the simulation to load before connecting
Despite all this, the Vacuum Cleaner robot still does not appear and HAL does not receive any real data.
Could you please check if there is an issue with the Vacuum Cleaner simulation or my session?
Thank you.
