Launch GADEN_preprocessing.launch

[rafluq]

Hi! I would like to run any of the examples of the test_env folder, but I don't know how to do it very well because I get this error when I launch the GADEN_preprocessing.launch file: ("roslaunch /home/usuario/catkin_ws/src/gaden-master/test_env/10x6_central_obstacle/launch/GADEN_preprocessing.launch")

ERROR: cannot launch node of type [gaden_preprocessing/preprocessing]: can't locate node [preprocessing] in package [gaden_preprocessing]

(Or when I do: "roslaunch test_env GADEN_preprocessing.launch" I get this error:

multiple files named [GADEN_preprocessing.launch] in package [test_env]:

• /home/usuario/catkin_ws/src/gaden-master/test_env/10x6_snake/launch/GADEN_preprocessing.launch
• /home/usuario/catkin_ws/src/gaden-master/test_env/10x6_central_obstacle/launch/GADEN_preprocessing.launch
• /home/usuario/catkin_ws/src/gaden-master/test_env/MAPIRlab/launch/GADEN_preprocessing.launch
• /home/usuario/catkin_ws/src/gaden-master/test_env/10x6_empty_room/launch/GADEN_preprocessing.launch
• /home/usuario/catkin_ws/src/gaden-master/test_env/10x6_maze/launch/GADEN_preprocessing.launch Please specify full path instead The traceback for the exception was written to the log file )

I only installed the complete project into my catkin_ws/src folder and compile it.

Anybody could tell me any advice? Thank you very much, and sorry for the inconveniences.

[JGMonroy]

Hi @rafluqber95,

I answer you in reverse order:

• roslaunch test_env GADEN_preprocessing.launch --> As you point out, this method cannot be used as I replicated the name of the launch files for every test scenario in the same test_env pkg. Therefore, rising this issue of multiple files with the same name (I thought it was a good idea to have all launch files with the same name as to easily introduce new scenarios, but maybe I've to think it again.)

• The correct way is to use the full path to the launch file so that ROS does not have to mess with multiple files named the same. For example: roslaunch /home/<username>/catkin_ws/src/olfaction/gaden/test_env/10x6_central_obstacle/launch/GADEN_preprocessing.launch. The latter works for me with no problems.

To check that GADEN is properly installed, confirm that:

• You have sourced the correct catkin_ws in your .bashrc file.
• rospack can find GADEN and test_env pkgs: rospack find gaden_preprocessing, 'rospack find test_env.
• That catkin_make does run without errors.

Let me know your outputs. Best, Javier

[JGMonroy]

Also, remember that for some GADEN components, you need to download some msg definitions from the repo olfaction_msgs.

[rafluq]

Also, remember that for some GADEN components, you need to download some msg definitions from the repo olfaction_msgs.

Now yes, thank you very much!

[forgetto]

Hello, this is the first time for me to use GADEN. I am not very clear about its installation and use, so I would like to ask if there are any documents or video tutorials, thank you very much