No odom published for turtlebot2
I am using turtlebot2 in simulation with Gazebo. I tried launching turtlebot_world.launch
and noticed that there is no ground truth odometry published like it is in turtlebot3_empty_world.launch
for turtlebot3.
I need the robot odometry and even the ground truth odometry from Gazebo would do. What should I do to get it? Am I missing something here?