执行ros2 launch fishbot_navigation2 navigation2.launch.py 错误

[liao_03]

dujutese@dujutese-virtual-machine:~/fishbot$ ros2 launch fishbot_navigation2 navigation2.launch.py
[INFO] [launch]: All log files can be found below /home/dujutese/.ros/log/2024-04-20-22-30-50-521955-dujutese-virtual-machine-38209
[INFO] [launch]: Default logging verbosity is set to INFO
[ERROR] [launch]: Caught exception in launch (see debug for traceback): Caught multiple exceptions when trying to load file of format [py]:

• PackageNotFoundError: "package 'nav2_bringup' not found, searching: ['/home/dujutese/fishbot/install/fishbot_navigation2', '/home/dujutese/fishbot/install/fishbot_interfaces', '/home/dujutese/fishbot/install/fishbot_description', '/home/dujutese/fishbot/install/fishbot_cartographer', '/home/dujutese/fishbot/install/fishbot_bringup', '/opt/ros/humble']"
• InvalidFrontendLaunchFileError: The launch file may have a syntax error, or its format is unknown
  dujutese@dujutese-virtual-machine:~/fishbot$

[1650569098]

@liao_03 大佬请问怎么解决的