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Probably because controller_manager is not installed.
Fix:
sudo apt install ros-kinetic-controller-manager
In general, it's best to use rosdep to install missing packages. I'm going to assume that:
~/catkin_wsgazebo_ros_demos (which includes rrbot_control) into ~/catkin_ws/src/gazebo_ros_demosThen do this:
source /opt/ros/kinetic/setup.bash
sudo rosdep init
rosdep update
cd ~/catkin_ws/src
rosdep install -i --from-paths .
This will install all missing dependencies for you, and should work on 99% of all ROS packages.
when i "sudo apt install ros-kinetic-controller-manager",it is already installed,i do not know if i understand "you've checked out gazebo_ros_demos (which includes rrbot_control) into ~/catkin_ws/src/gazebo_ros_demos"
My "test1.launch" file is under the "rrnot_control" folder. my "rrbot_control" is under the "my_gazebo" folder.when i "cd ~/catkin_ws/src/my_gazebo" run these"source /opt/ros/kinetic/setup.bash sudo rosdep init rosdep update cd ~/catkin_ws/src rosdep install -i --from-paths " is that right?
is the path right?when i run "sudo rosdep init",ERROR: default sources list file already exists: /etc/ros/rosdep/sources.list.d/20-default.list Please delete if you wish to re-initialize
when i "rosdep update",it works. when "cd ~/catkin_ws/src" run "rosdep install -i --from-paths"
Usage: rosdep [options] <command> <args> Commands: rosdep check <stacks-and-packages>... check if the dependencies of package(s) have been met. rosdep install <stacks-and-packages>... generate a bash script and then execute it. rosdep db .... rosdep: error: no packages or stacks specified,why??
Asked: 2018-07-20 01:21:45 -0500
Seen: 1,797 times
Last updated: Jul 20 '18
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