List of commonly encountered errors at Fall School

Are Gazebo and Rviz running properly?

First make sure you have compiled gazebo and rviz by running:

• rosmake gazebo --rosdep-install
• rosmake rviz --rosdep-install

Now run the folowing commands in 3 different terminals:

• roscore (starts rosmaster)
• roslaunch pr2_gazebo pr2_empty_world.launch (starts Gazebo with pr2 robot)

• rosrun rviz rviz -> Add -> Robot Model (You shall be able to see the model of PR2 robot in rviz)

If you see "Global Status: Error:

fixed frame [/map] does not exist" just replace /map by /base_link

Issues with Graphic Cards

I have a GeForce 9650M GT, Ubuntu 10.04 and installed the restricted driver 173.14.22 from the repository. The latest did not work for my laptop ASUS M50VN, the system got frozen after some time.