How to run Talker/Listener from rosjava_tutorial_pubsub

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Thanks. It works but if I create and build my own new package inside rosjava_core directory and put Talker.java inside src/main/java/org/ros/my_test/Talker.java and copied build.gradle from pubsub tutorial, it gives error:> Project with path ':rosjava' could not be found in root project 'my_test'

That's a different problem, so please open a new question and post a link to that question here. I'll answer there.

Hi Martin, can you please explain how to make new package buildable and runable in rosjava_core in detail and step by step. here is the link http://answers.ros.org/question/46961/error-in-building-new-package-in-rosjava_core/ THANKS