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Simulation pr2_controller_manager

asked 2012-11-05 03:15:44 -0600

monidiaz gravatar image

updated 2014-11-22 17:05:07 -0600

ngrennan gravatar image

I'm trying thia pr2s tutorial : Teleop PR2 arm in simulation (

when i put the line: roslaunch jtteleop.launch the error is :

 Failed to load r_cart

in the .launch is here ....

<node name="spawn_cart"
       pkg="pr2_controller_manager" type="spawner"
       args="r_cart" />

I suppose that the pr2_controller_manager was missing in my deps ... but i tried

sudo apt-get install ros-fuerte-pr2-mechanism but the error always is the same

Tried change the type in the .launch and doesn't work

<rosparam ns="r_cart">

    type: robot_mechanism_controllers/JTCartesianControll
    root_name: torso_lift_link

Next Error is

 Could not load controller 'r_cart' because controller type 'robot_mechanism_controllers/JTCartesianControll' does not exist

i don't know what i'm doing wrong ... i'm just keep few weeks Workin On Ros ..

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2 Answers

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answered 2012-11-06 03:41:32 -0600

Lorenz gravatar image

You have a typo in the controller name. It should be robot_mechanism_controllers/JTCartesianController, not robot_mechanism_controllers/JTCartesianControll.

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answered 2012-11-05 03:26:39 -0600

Lorenz gravatar image

The debian package is called ros-fuerte-pr2-mechanism. But I guess it is installed already because pr2_gazebo_plugins which is needed by pr2_gazebo depends on it.

The problem probably is that your controller configuration is wrong. I guess the tutorial you are relying on is outdated. Try changing the controller type to robot_mechanism_controllers/JTCartesianController.

Btw. please have a look at the support page and follow the guidelines. It would have been good if you pasted the complete launch file and the complete error output.

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Asked: 2012-11-05 03:15:44 -0600

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Last updated: Nov 06 '12