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I am having a similar problem to this but the next step. I had the pubsub Listener code working eariler today and now it does not.

When I execute rosrun rosjava_bootstrap run.py rosjava_tutorial_pubsub org.ros.tutorials.pubsub.Listener the node appears to start fine.

When I try rostopic pub -1 /chatter std_msgs/String Hello a RosRuntimeException: java.net.ConnectException is thrown.

Is there something obvious here I am doing wrong? Any ideas?

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