hilary-luo
commented
11 months ago You shouldn't need to launch the oakd separately (it is launched automatically). If you are specifically wanting to shut the turtlebot service down and launch the oakd camera alone then you may be better off launching oakd_example.launch.py. That or creating your own launch file that creates and passes in the namespace launch argument as blank, to oakd.launch.py. The oakd.launch.py file was not intended for the user to be launching directly.
If you look into this oakd.launch.py you can see that it is expecting a namespace parameter to be passed in. For the standard turtlebot, this is passed down from the standard.launch.py file. You can pass it in using the command line if you namespace your robot, but it isn't possible (to my knowledge) to pass in the parameter as blank from the terminal.
ramakrishnasakethi
Please provide the following information:
Package version: H.2.2
Expected behaviour Camera getting operational.
Actual behaviour ubuntu@ubuntu:~/turtlebot4_ws/src$ ros2 launch turtlebot4_bringup oakd.launch.py [INFO] [launch]: All log files can be found below /home/ubuntu/.ros/log/2023-09-12-08-35-17-651955-ubuntu-2499 [INFO] [launch]: Default logging verbosity is set to INFO [ERROR] [launch_ros.actions.node]: Error while expanding or validating node name or namespace for 'package=rclcpp_components, executable=component_container, name=oakd_container, namespace=<launch.substitutions.launch_configuration.LaunchConfiguration object at 0xffffb38f28c0>': [ERROR] [launch]: Caught exception in launch (see debug for traceback): launch configuration 'namespace' does not exist.
To Reproduce ros2 launch turtlebpt4_bringup oakd.launch.py
Other notes I did not give the robot any name.