erro in ros2 launch dobot_moveit dobot_moveit.launch.py

[DoubleH-hash]

when i use ros2 humble run : ros2 launch dobot_moveit dobot_moveit.launch.py just like this example, show me this error :
[INFO] [launch]: Default logging verbosity is set to INFO
Using load_yaml() directly is deprecated. Use xacro.load_yaml() instead.
Using load_yaml() directly is deprecated. Use xacro.load_yaml() instead.
Using load_yaml() directly is deprecated. Use xacro.load_yaml() instead.
Using load_yaml() directly is deprecated. Use xacro.load_yaml() instead.
Using load_yaml() directly is deprecated. Use xacro.load_yaml() instead.
Using load_yaml() directly is deprecated. Use xacro.load_yaml() instead.
Using load_yaml() directly is deprecated. Use xacro.load_yaml() instead.
Using load_yaml() directly is deprecated. Use xacro.load_yaml() instead.
Using load_yaml() directly is deprecated. Use xacro.load_yaml() instead.
Using load_yaml() directly is deprecated. Use xacro.load_yaml() instead.
[ERROR] [launch]: Caught exception in launch (see debug for traceback): 'capabilities'

can you solve this error?