[gui.py-5] Error

[hitmyself]

When I run the following command,：

ros2 launch crazyflie launch.py

It gets:

[gui.py-5] Error:   TF_NAN_INPUT: Ignoring transform for child_frame_id "cf4" from authority "default_authority" because of a nan value in the transform (-0.007230 -0.012239 0.009829) (nan nan nan nan)
[gui.py-5]          at line 235 in ./src/buffer_core.cpp
[gui.py-5] Error:   TF_DENORMALIZED_QUATERNION: Ignoring transform for child_frame_id "cf4" from authority "default_authority" because of an invalid quaternion in the transform (nan nan nan nan)
[gui.py-5]          at line 254 in ./src/buffer_core.cpp``

how can i solve this problem

[whoenig]

Is the functionality affected? This seems to be some warning (even though it says error), that is most likely happening in single marker tracking mode (where quaternions are set to nan).