unknown_publisher: Ignoring transform for child_frame_id "link1"

edit

Hello. Currently I want to simulate random robot, which not provide ROS related files at all, to ROS environment.

Most of manufacturer provide 3D cad file(.step).

And I do some search to make urdf file from cad file, finally I figure it out THERE IS a add-in function in solidworks(wiki.ros.org/sw_urdf_expor....

However, unfortunately, it shows error message as below.

[ERROR] [1542609991.430536188]: Ignoring transform for child_frame_id "link1" from authority "unknown_publisher" because of a nan value in the transform (-nan -nan -nan) (-nan -nan -nan -nan)

[ERROR] [1542609991.430645045]: Ignoring transform for child_frame_id "link1" from authority "unknown_publisher" because of an invalid quaternion in the transform (-nan -nan -nan -nan)

[ERROR] [1542609991.430670924]: Ignoring transform for child_frame_id "link2" from authority "unknown_publisher" because of a nan value in the transform (-nan -nan -nan) (-nan -nan -nan -nan)

[ERROR] [1542609991.430689004]: Ignoring transform for child_frame_id "link2" from authority "unknown_publisher" because of an invalid quaternion in the transform (-nan -nan -nan -nan)

https://github.com/Jungduri/HX300L.git Here is the code that I made.

OS: ubuntu 16.04 LTS(VMware) ROS: kinetic

Any comments will helpful. Thank you