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2014-04-28 13:54:35 -0500 commented answer Record Gazebo Simulation

I am trying to install this - RecordingOpenGLAppsWithGLC. But I am not able to follow the instructions. https://github.com/nullkey/glc/wiki/Install It says After Building.. Now how do I build it?

2014-04-27 20:13:08 -0500 asked a question Record Gazebo Simulation

Hi, Can anyone tell me how to record the simulation that I run on Gazebo and rviz? I am unable to find any documents suggesting the solution.

Ubuntu - 120.4 precise ROS - Groovy

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2014-04-13 13:09:51 -0500 asked a question Forward kinematics service call failed

While going through the pr2_kinematics tutorials, I came across this problem:

[ERROR] [1397430137.702585947]: Forward kinematics service call failed

Now i am unable to even launch the navigation stack.

 WARN] [1397432550.180089299, 17.461000000]: The root link base_footprint has an inertia specified in the URDF, but KDL does not support a root link with an inertia.  As a workaround, you can add an extra dummy link to your URDF.

I followed the instructions but presume that I have missed some portion. Does anyone have an idea?

I am using groovy and ubuntu 12.04.

http://wiki.ros.org/pr2_kinematics/Tu...

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2014-04-11 07:00:57 -0500 asked a question set as active on server? - meaning

What does it mean by the following?

set it as the active DMP on the server, and use it to plan, given a new start and goal:

There is a code following this sentence. and at the end of it it states- Execute this. I created a directory - scripts and added the code as dmp.py and made it to executable by-

chmod +x scripts/dmp.py

And then i roslaunched the package agian. I am unable to see the desired response.

2014-04-11 06:36:36 -0500 commented answer Cannot locate node in package

thanks. yes. Its a rosbuild package.

2014-04-11 05:52:05 -0500 asked a question Cannot locate node in package

How to run a server? I cloned the package dmp and saved it in my sandbox. when I roslaunch the dmp node, I get the error

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

Must I add something in CMakeList.txt before I launch?

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2014-04-10 15:20:19 -0500 asked a question syntax error near unexpected token `'joint_states listener''

In this tutorial - http://wiki.ros.org/pr2_controllers/T...

I was trying to run the service node for getting the current joint angles but the screen shows the message stated below.-

~/groovy_workspace/sandbox/joint_states_listener$ rosrun joint_states_listener joint_states_listener.py
/home/roger/groovy_workspace/sandbox/joint_states_listener/nodes/joint_states_listener.py: line 6: syntax error near unexpected token `'joint_states_listener''

I am following the tutorial stepwise and havent missed any. Dont know what the problem is. Pls help.

I am using geoovy and ubuntu 12.04

2014-04-09 06:05:15 -0500 asked a question editing CMakeList.txt

I was going through pr2_controller tutorials and came across the portion where we must build and run the program. It says make the binary by typing make in the drive_base_tutorial directory. Where must I type this? In the CMakeList.txt file? and what does it mean by make the binary?

Thanks in advance

2014-04-09 05:39:32 -0500 commented answer unable to create a ros package in pr2_controller tutorial

Thanks. It helped.

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2014-04-08 16:19:09 -0500 asked a question unable to create a ros package in pr2_controller tutorial

I am following the tutorial, Using the low-level robot base controllers to drive the robot. I got a pr2 in gazebo and rosran the pr2 controller manager. When I try to roscreate-pkg drive_base_tutorial roscpp geometry_msgs this is what the terminal looks like: !!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!! WARNING: current working directory is not on ROS_PACKAGE_PATH! Please update your ROS_PACKAGE_PATH environment variable. !!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!! Created package directory /home/roger/catkin_ws/src/drive_base_tutorial Created include directory /home/roger/catkin_ws/src/drive_base_tutorial/include/drive_base_tutorial Created cpp source directory /home/roger/catkin_ws/src/drive_base_tutorial/src Created package file /home/roger/catkin_ws/src/drive_base_tutorial/Makefile Created package file /home/roger/catkin_ws/src/drive_base_tutorial/manifest.xml Created package file /home/roger/catkin_ws/src/drive_base_tutorial/CMakeLists.txt Created package file /home/roger/catkin_ws/src/drive_base_tutorial/mainpage.dox

Please edit drive_base_tutorial/manifest.xml and mainpage.dox to finish creating your package

I am using 12.04 ubuntu and groovy. export declare -x ROSLISP_PACKAGE_DIRECTORIES="" declare -x ROS_DISTRO="groovy" declare -x ROS_ETC_DIR="/opt/ros/groovy/etc/ros" declare -x ROS_PACKAGE_PATH="/opt/ros/groovy/share:/opt/ros/groovy/stacks" declare -x ROS_ROOT="/opt/ros/groovy/share/ros"

and cd is in catkin_ws/src.

Please help. I do not know how to proceed