Erin,
You need to run roscore before starting the turtlesim node.  ROS nodes will
not initialize until they can contact the master which is started as part of
roscore.

I've updated the tutorial to reflect this at
http://www.ros.org/wiki/turtlesim

Tully

On Mon, Mar 22, 2010 at 9:59 AM, Erin Kennedy
<erin.robotics@robotgrrl.com>wrote:

> Hi all,
>
> I'm encountering an error when I try to rosrun turtlesim turtlesim_node ...
>
> [ERROR] 1269276678.662877000: [registerPublisher] Failed to contact master
> at [localhost:11311]. Retrying...
>
> It stalls there. When I press Ctrl-C, this appears:
>
>  ^C[ INFO] 1269277115.920872000: Starting turtlesim with node name
> /turtlesim
> [ INFO] 1269277115.921579000: Spawning turtle [turtle1] at x=[5.555555],
> y=[5.555555], theta=[0.000000]
>
> No simulation window.
>
> Has anyone had this bug? How do you fix it?
>
> Best,
> EK
>
>
> _______________________________________________
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> ros-users@code.ros.org
> https://code.ros.org/mailman/listinfo/ros-users
>
>


-- 
Tully Foote
Systems Engineer
Willow Garage, Inc.
tfoote@willowgarage.com
(650) 475-2827