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Hi. I installed diferential_drive package. One node from this package run well. But if i running another one node from this package, ROS don't found this package.
$ rosrun differential_drive twist_to_motors.py
[rospack] Error: package 'differential_drive' not found
How can I run few node frome one package? Thanks.
So, if the "source ~/catkin_ws/devel/setup.bash" worked, that's because you didn't add it to your .bashrc file.
The ~/.bashrc file is "sourced" every time you open a new terminal. If you prefer, you can execute "source ~/catkin_ws/devel/setup.bash" for each terminal. But if you want to save some time, just write this command at the end of this .bashrc file.
Take a look again in the installation page, you'll see an explanation about this.
It's the Environment Setup section. http://wiki.ros.org/kinetic/Installat...
Hope it can help you!
Asked: 2017-07-18 03:51:33 -0500
Seen: 162 times
Last updated: Jul 19 '17
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Are you make sure you've have sourced the workspace setup.bash file? Maybe, you're trying to run it in another terminal that you didn't execute e.g: source ~/catkin_ws/setup.bash
Yes, i'm sure. I did source ~/catkin_ws/setup.bash. First node run is well. But after if i do "rospack list", then list no have differential_drive. If no one node is run from this package, rospack list have differential_drive. Why package is gone when i run node? Sorry for my English )
I try do "source ~/catkin_ws/devel/setup.bash" before every rosrun node from package in every terminal. And it's work. So that is right using?
Exactly! That's the way you have to use ROS. You should source the workspace devel/setup.bash file manually or in your .bashrc file. :)