Hi everyone, I'm fairly new to ROS and I've successfully recorded a rosbag with just a laser scan. I'm able to view it in RVIZ and now I'm trying to transform the scan into a point cloud. I've also a tf_broadcaster and a tf_listener. I'm playing the bag (that has the scan), I'm running both the tf_broadcaster and tf_listener, and I've built the code from here http://answers.ros.org/question/11232/how-to-turn-laser-scan-to-point-cloud-map/ , but I'm not able to obtain the point cloud. When I run the bag, the node that transform the laser scans into point cloud aborts. And I get this message:
terminate called after throwing an instance of 'tf2::LookupException'
what(): "laser" passed to lookupTransform argument source_frame does not exist.
Aborted (core dumped)
Thanks in advance!
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