Writing a Teleoperation Node for a Linux-Supported Joystick

Question

Hi. I am starting learning ROS. I want to do the tutorial "Writing a Teleoperation Node for a Linux-Supported Joystick" in http://www.ros.org/wiki/joy/Tutorials/WritingTeleopNode but when i try to run the command "roslaunch learning_joy turtle_joy.launch" I get

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

I appreciate your help a lot

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Originally posted by jcparrad on ROS Answers with karma: 1 on 2012-09-05

Post score: 0

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Original comments

Comment by mahathi92 on 2020-10-16:
I am getting the exact same error.

But, if you go to ~/catkin_ws/ and

catkin_make

you get the build files in ~/catkin_ws/build/learning_joy

Run the executable using:

./turtle_teleop_joy

Make sure you do

rosrun turtlesim turtlesim_node

rosrun joy joy_node

Also initialize the l_scale_ and a_scale_ variables to some integer (I made them 10).

I still get the same error when I try using the launch file. Please help if anyone got to know why this happens.

Answer 1

The tutorial doesn't explicitly tell you to compile your code, but you should make sure to run the command

rosmake learning_joy

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Originally posted by Dan Lazewatsky with karma: 9115 on 2012-09-05

This answer was ACCEPTED on the original site

Post score: 3