Problem with launch file

edit

catkin_make

source ~/robo_arm_ws/devel/setup.bash

cd ~/robo_arm_ws/src

paste the project

Is that the order you've used? If that's the case, there is your problem.

You execute catkin_make from your workspace folder (in this case ~/robo_arm_ws). That command then builds all the packages it can find in the src folder (~/robo_arm_ws/src). It creates a build and devel folder, which hold the executable parts of your packages. Then, when you source the setup file (using source ~/robo_arm_ws/devel/setup.bash) you tell ROS (in the terminal you have executed that command!!) what packages are built in that workspace.

What you did (if the order is correct) is first run catkin_make, building all the packages in your src folder (which, unless you already had other packages in there, was empty, but definitely didn't include final_config). Then source the file telling ROS which packages are located in your workspace (which would not include the final_config package). Then paste the final_config package in the src folder, and try to run it without it ever being built.

So you would need to run catkin_make again (from ~/robo_arm_ws) and source it again (source ~/robo_arm_ws/devel/setup.bash) and then try and run your demo.

hi, "And there I pasted all the project,...." 1. did you build the workspace after pasting your project? 2. then you need to source the ws again.