Eitan, It worked very well ! Thank you ! After to execute : laptop:~$ source /home/emanuel/icra10_navigation_ros/setup.sh laptop:~$ rosmake --rosdep-install icra_navigation_gazebo It resulted in : Results: [ rosmake ] Built 126 packages with 0 failures. And the $ make test has presented the simulations. ................................................................................................. At my first trial with the rosconfig file sent by you: laptop:~$ source /home/emanuel/icra10_navigation_ros/setup.sh laptop:~$ rosinstall ~/icra_navigation_gazebo icra_navigation_gazebo.rosconfig The rosinstall resulted in a automatic building, that despite the success message it (I think !) doesn't verified the dependences... ogre in particular. As you can see below (it resulted in built 14 packages) : --------------------------------------------------------------------------------------------------------------------------- A /home/emanuel/icra10_navigation_ros/stacks/ros_experimental/CMakeLists.txt Gerado cópia de trabalho para revisão 11605. Bootstraping ROS build [ rosmake ] Detected rosout not built, adding it to the build [ rosmake ] Packages requested are: ['rostest', 'rosout'] [ rosmake ] Logging to directory/home/emanuel/.ros/rosmake/rosmake_output-20101019-165445 [ rosmake ] Expanded args ['rostest', 'rosout'] to: ['rostest', 'rosout'] [ rosmake ] Generating Install Script using rosdep then executing. This may take a minute, you will be prompted for permissions. . . executing this script: set -o errexit #No Packages to install [ rosmake ] rosdep successfully installed all system dependencies .... Results: [ rosmake ] Built 14 packages with 0 failures. [ rosmake ] Summary output to directory [ rosmake ] /home/emanuel/.ros/rosmake/rosmake_output-20101019-165445 done. Now, type 'source /home/emanuel/icra10_navigation_ros/setup.sh' to set up your environment. Add that to the bottom of your ~/.bashrc to set it up every time. ------------------------------------------------------------------------------------------------------------------------------------------