Hello,
First of all, I went through some problems that I asked you. That is why thank you. I have been struggling with this issue for days.
I don't know where to put ekf_localization in tf_tree. I know I need it because of localization but when I put between base_link and odom robot in rviz jumps and destabilized. I assume there are two solutions I can manage.:

1-) making ekf_localization useless in tf_tree yet it can be usefull in localization later on.

2-)making ekf_localization so precise that ground_truth_to_tf and ekf_localization send the same messages.

If you tell me the ones that need to be changed in config I would appreciate. Thanks for helping. 👍

Hello,
I'm new at ROS. I need to do a simulation of jaguar in gazebo but I don't know how to do it. (I tried a few days) Can you help me how to do it? (I download all your files and did gazebo tutorial.)

Can you kindly provide some beginner tutorial for basic functionalities e.g. velocity control, keyboard control?

Thanks,
Kevin

Hello,
I want to navigate my jaguar. Yet I need to make a map and there is no laser scan for /scan topic. Even though there is no laser scan, you have made a place for it. Do I have to erase your created place for laser scan? and if I don't need to erase it, what should I do in order to put laser scan in your laser place. Thank you for understanding. Have a nice day.