Deprecated datum parameter configuration detected.

edit

hi everyone, In the navsat_transform_node, i put wait_for_datum: true and also define datum as :

rosparam param ="datum"> [52.07208, -0.627946666667, 0.0, map, base_link]</rosparam>

, but after running the bag file and then running robot_localization instances, i receive the following error:

[ WARN] Deprecated datum parameter configuration detected. Only the first three parameters (latitude, longitude, yaw) will be used. frame_ids will be derived from odometry and navsat inputs.

one more problem is that, in rviz /odometry/gps (output of navsat node), isnot on the ground, i mean it shows it with a height from the ground.

what does it mean? how to fix it? thanks