[ros-users] NXT ROS - help and advice

Melonee Wise mwise at willowgarage.com
Thu Sep 2 23:00:35 UTC 2010


Hi Henry-

if you were following the try it instructions after install, we forgot to add start roscore... So before doing the rosrun in the instructions in a separate terminal type roscore to start your ros master... Then things should work..

-Melonee

On Sep 2, 2010, at 5:41 PM, Henry Acevedo <henryacev at hotmail.com> wrote:

> Hi I'm new with ROS  ,as I want to test the NXT, I did the complete installation and as I'm using the Bluetooth dongle recommended by Lego with my laptop (Ubuntu) but I cannot connect I got an error 
> [ERROR] 2010-09-02 22:03:50,429: [Errno 111] Connection refused
> Unable to register with master node [http://localhost:11311]: master may not be running yet. Will keep trying.
> [INFO] 2010-09-02 22:04:52,563: signal_shutdown [signal-2]
> [WARNING] 2010-09-02 22:04:52,565: cannot unregister with master due to network issues
> [INFO] 2010-09-02 22:04:52,565: signal-2
> [INFO] 2010-09-02 22:04:52,674: connected to core topic /rosout
> [ERROR] 2010-09-02 22:04:52,736: Unable to initialize /clock: [Errno 111] Connection refused
> 
> 
> but not sure how to fix this issue, 
> 
> please any help will be appreciated
> 
> 
> Thanks
> 
> 
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