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Can't locate node [joints_receive_from_arduino.py] in package [ros_control_example]

asked 2022-05-12 20:10:52 -0600

mustafaxfe
3 ●1 ●2 ●3

updated 2022-05-12 23:41:43 -0600

gvdhoorn
86574 ●283 ●1432 ●1054 http://cor.tudelft.nl/

I have been trying to build and run ros_control_example(https://github.co... package. But, it seems I have done something wrong.

I have created catkin_ws folder and cloned it from github to catkin_ws/src folder and catkin_make finished without any error. And also I have added it to .bashrc(source catkin_ws/devel/setup.bash)

But when I try to run this package with "roslaunch ros_control_example check_velocity_controller.launch"

it gives "ERROR: cannot launch node of type [ros_control_example/joints_receive_from_arduino.py]: can't locate node [joints_receive_from_arduino.py] in package [ros_control_example]" But that python code "joints_receive_from_arduino.py" is under "~/catkin_ws/src/ros_control_example/ros_control_example/scripts/" folder.

And an empty rviz starts.

What should I have to do to solve this issue?

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Comments

I've updated the title of your post to better reflect what the problem is you report.

This is not related to RViz.

gvdhoorn ( 2022-05-12 23:42:09 -0600 )edit

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answered 2022-05-13 12:55:35 -0600

Davies Ogunsina

flag of Nigeria

96 ●28 ●6

updated 2022-05-13 13:01:04 -0600

Did you make your file readable? I mean the python file .

Chmod +× (name of .py file )

In the package you cloned you will have a .py file in the launch file

<launch> <node pkg="name of package" type="which is the .py " output="screen"/> </launch>

You have to make the .py file executable from the src folder . Cd into the src and make the file readable

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Asked: 2022-05-12 20:10:52 -0600

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Last updated: May 13 '22

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