Usually when the problem occurs on one machine but not a another the issues is:

a) lack of the proper MSG definitions
or
b) routing issues (inability to connect back and forth by name or *same* IP)

You might also try using the svn version of rosbridge:

svn checkout https://brown-ros-pkg.googlecode.com/svn/trunk/experimental/rosbridge
rosbridge

Let me know how things go. If need be I might can provide more
specific help off-list.

_Trevor

On Wed, Nov 2, 2011 at 2:12 AM, Manabu Saito <saito@jsk.t.u-tokyo.ac.jp> wrote:
> Hi, all
>
> I'm trying to use rosbridge and wviz.
> After installed and compiled brown_remotelab stack and rosjs,
> rosbridge.py node returns error.
>
> On my another destop PC, this problem does not occur.
> Does anyone know about this problem?
>
> --- console output
>
> saito@pr1012:~$ rosrun rosbridge rosbridge.py
> Problem Problem Problem Problem Problem Problem Problem Problem Problem Problem
> Traceback (most recent call last):
>  File "/u/saito/ros/electric/brown_remotelab/rosbridge/bin/rosbridge.py",
> line 270, in <module>
>    serveForever(handleFrameFactory(handleMsgFactory, sub, keyurl,
> ros), handleOutput, loop, host, port)
>  File "/pr/1/saito/ros/electric/brown_remotelab/rosbridge/bin/terribleWSS/ws.py",
> line 259, in serveForever
>    socks = incoming + filter(lambda x:x not in incoming,outgoing)
> UnboundLocalError: local variable 'outgoing' referenced before assignment
>
>
> thanks,
> Manabu
>
>
> --
> Manabu Saito <saito@jsk.t.u-tokyo.ac.jp>
> _______________________________________________
> ros-users mailing list
> ros-users@code.ros.org
> https://code.ros.org/mailman/listinfo/ros-users
>



-- 
_Trevor