Hi Jie, In our tutorial we used Python code not Scala. Please use PySpark and Python. --- [Visit Topic](https://discourse.ros.org/t/working-with-large-ros-bag-files-on-hadoop-and-spark/2314/10) or reply to this email to respond. If you do not want to receive messages from ros-users please use the unsubscribe link below. If you use the one above, you will stop all of ros-users from receiving updates. ______________________________________________________________________________ ros-users mailing list ros-users@lists.ros.org http://lists.ros.org/mailman/listinfo/ros-users Unsubscribe: