pub no data after running roslaunch

asked 2017-04-27 02:20:05 -0500

DaDaLee gravatar image

With using robot_localization offered by ROS downloaded from github,I came up with a problem: I run roslaunch ekf_template.launch in a terminal and it turns out to be good.Then I run rostopic echo /odometry/filtered in another terminal while rosbag play a bagfile in another terminal.But I got nothing.Does it mean that the node isn't operating at all or something else goes wrong?

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check if all your nodes run on the same master with echo $ROS_MASTER_URI on every terminal before you start execution and check all your topics with rostopic list and then rostopic info YOUR_TOPIC

angeltop gravatar image angeltop  ( 2017-04-27 08:55:50 -0500 )edit

THX!It has been nailed.So nice of you

DaDaLee gravatar image DaDaLee  ( 2017-04-27 20:34:43 -0500 )edit