Jetson-io Error

I have to use jetson-io.
However, jetson-io does not work.
And when you run, an error will get an error.

Traceback (most recent call last):
File “./”, line 51, in
File “./”, line 34, in main
jetson = board.Board()
File “/opt/nvidia/jetson-io/Jetson/”, line 147, in init = _board_get(self.compat)
File “/opt/nvidia/jetson-io/Jetson/”, line 81, in _board_get
raise RuntimeError(“No board data found!”)
RuntimeError: No board data found!

The module I use is TX2I and JetPack version is 4.3.
The LT4 information is as follows:

cat /etc/nv_tegra_release
R32 (release), REVISION: 3.1, GCID: 18186506, BOARD: t186ref, EABI: aarch64, DATE: Tue Dec 10 07:03:07 UTC 2019

What should I do?

hello bh.yim,

please check developer guide for reference, Configuring the 40-pin Expansion Header.