I met the problem in first step to load the simulation. After that, there is no robot shown in the simulation environment.
user:~$ ros2 launch rosbot_xl_gazebo simulation.launch.py[INFO] [launch]: All log files can be found below /home/user/.ros/log/2025-07-19-07-31-07-404335-4_xterm-5284[INFO] [launch]: Default logging verbosity is set to INFO
[INFO] [launch.user]: Robots:
[INFO] [launch.user]: Launching namespace= with init_pose= {‘x’: ‘0.0’, ‘y’: ‘0.0’, ‘z’: ‘0.2’, ‘roll’: ‘0.0’, ‘pitch’: ‘0.0’, ‘yaw’: ‘0.0’}
[ERROR] [launch]: Caught exception in launch (see debug for traceback): “package ‘controller_manager’ not found, searching: [‘/home/user/sim_ws/install/teleop_twist_keyboard’, ‘/home/user/sim_ws/install/rosbot_xl_utils’, ‘/home/user/sim_ws/install/rosbot_xl_gazebo’, ‘/home/user/sim_ws/install/rosbot_xl’, ‘/home/user/sim_ws/install/rosbot_xl_bringup’, ‘/home/user/sim_ws/install/rosbot_xl_controller’, ‘/home/user/sim_ws/install/rosbot_xl_description’, ‘/home/user/sim_ws/install/ros_components_description’, ‘/home/user/sim_ws/install/nav2_common’, ‘/home/user/sim_ws/install/husarion_gz_worlds’, ‘/home/user/ros2_ws/install/dds_tests_pkg’, ‘/home/simulations/ros2_sims_ws/install/rmw_cyclonedds_cpp’, ‘/opt/ros/jazzy’]”