install turtlesim on Raspberry Pi [closed]

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Hello

I'm following the tutorial at http://wiki.ros.org/ROSberryPi/Settin...

I ran the following command

$ cd ~/ros_catkin_ws/src $ roslocate info turtlesim | rosws merge - $ rosws update $ cd .. $ rosdep install --from-paths src --ignore-src --rosdistro hydro -y --os=debian:wheezy

ERROR: the following package/stacks could not have their rosdep keys resolved to system dependecies: turtlesim: No definition of [geometry_msgs] for OS [debian]

I don't know how to resolve. Please teach me.