Nav2 Simple Commander demo not working

I’m trying to run the simple commander demo here Nav2 Simple Commander - Stretch Docs (hello-robot.com) . However, when I run ros2 launch stretch_nav2 demo_security.launch.py map:=${HELLO_ROBOT_FLEET}/maps/<map_name>.yaml, I get a blank screen in Rviz after pressing “startup” (I’ve also substituted <map_name> with a valid map name, and it works with this command: “ros2 launch stretch_nav2 navigation.launch.py map:=${HELLO_FLEET_PATH}/maps/<map_name>.yaml”). Here’s a picture of what I see. I also don’t see any concerning error messages in the terminal. I’d appreciate any help with this!

1 Like

Hello @ycode we deeply appreciate your efforts in debugging this issue. As you had reported there is an issue with the documentation and correct path should be from HELLO_FLEET_PATH. We will fix it soon.
Restating:

  • Environment variable $HELLO_FLEET_PATH points to your stretch_user directory in your user home directory.
  • Environment variable $HELLO_ROBOT_FLEET points to your robot’s serial number