MSG to TF: Quaternion Not Properly Normalized

[Julius-ZCJ]

我在使用这个功能包的时候报错：
[ WARN] [1646898211.895255024]: MSG to TF: Quaternion Not Properly Normalized
Error: TF_NAN_INPUT: Ignoring transform for child_frame_id "imu" from authority "default_authority" because of a nan value in the transform (nan nan nan) (-nan -nan -nan -nan)
at line 244 in /tmp/binarydeb/ros-melodic-tf2-0.6.5/src/buffer_core.cpp
Error: TF_DENORMALIZED_QUATERNION: Ignoring transform for child_frame_id "imu" from authority "default_authority" because of an invalid quaternion in the transform (-nan -nan -nan -nan)
at line 257 in /tmp/binarydeb/ros-melodic-tf2-0.6.5/src/buffer_core.cpp