# Revision history [back]

### Recompile turtlebot from source problem

Hi Everyone, I need to implement a multi-turtlebot application with Hydro ROS so that I installed the turtlebot from source using the instructions below (http://wiki.ros.org/turtlebot/Tutorials/hydro/Installation) :

mkdir ~/turtlebot cd ~/turtlebot wstool init src https://raw.github.com/turtlebot/turtlebot/hydro/turtlebot.rosinstall -j8 source /opt/ros/hydro/setup.bash rosdep install --from-paths src -i -y catkin_make I spawned two turtlebots but I have problem with the “odom” topic that doesn’t resolve correctly. I am getting just one “/odom” topic instead of two like “robot1/odom” and “robot2/odom”

Since I have this problems, incorrect resolution of each robot prefix, I made some changes on the source file gazebo_ros_create.cpp located at HOME/turtlebot/src/turtlebot_create_desktop/create_gazebo_plugins/src Then, I compiled the from ”/turtlebot” “folder” using “catkin_make” but I noticed that my changes didn’t take effect. Am I doing something wrong? Or Do I need to do something else to see the effect of my changes?

Please any help would be very much appreciated!! Thanks

 2 No.2 Revision Jose Luis Rivero 1360 ●2 ●10 ●23

### Recompile turtlebot from source problem

Hi Everyone, I need to implement a multi-turtlebot application with Hydro ROS so that I installed the turtlebot from source using the instructions below (http://wiki.ros.org/turtlebot/Tutorials/hydro/Installation) :

  mkdir ~/turtlebot
cd ~/turtlebot
wstool init src https://raw.github.com/turtlebot/turtlebot/hydro/turtlebot.rosinstall -j8
source /opt/ros/hydro/setup.bash
rosdep install --from-paths src -i -y
catkin_make


I spawned two turtlebots but I have problem with the “odom” topic that doesn’t resolve correctly. I am getting just one “/odom” topic instead of two like “robot1/odom” and “robot2/odom”

Since I have this problems, incorrect resolution of each robot prefix, I made some changes on the source file gazebo_ros_create.cpp located at HOME/turtlebot/src/turtlebot_create_desktop/create_gazebo_plugins/src Then, I compiled the from ”/turtlebot” “folder” using “catkin_make” but I noticed that my changes didn’t take effect. Am I doing something wrong? Or Do I need to do something else to see the effect of my changes?

Please any help would be very much appreciated!! Thanks