Python3.6 Jetson.GPIO is installed but cannot be imported?

Hi, i’m working in a virtual environment with all my packages (blinka, servokit, Jetson.GPIO) have been installed successfully, but when i try to import Jetson.GPIO, it keep telling me that i have not installed the library. Please help me with this error. Thank you.This is the terminal output:

(tomatovenv) hietrn@Hien:~/tomato3$ python3.6 -m pip install Jetson.GPIOLooking in indexes: Simple index, https://pypi.ngc.nvidia.comRequirement already satisfied: Jetson.GPIO in ./tomatovenv/lib/python3.6/site-packages (2.1.3)

(tomatovenv) hietrn@Hien:~/tomato3$ python3.6 simpleservo.py

Traceback (most recent call last):File “simpleservo.py”, line 1, infrom adafruit_servokit import ServoKitFile “/home/hietrn/tomato3/tomatovenv/lib/python3.6/site-packages/adafruit_servokit.py”, line 35, inimport boardFile “/home/hietrn/tomato3/tomatovenv/lib/python3.6/site-packages/board.py”, line 148, infrom adafruit_blinka.board.nvidia.jetson_nano import *File “/home/hietrn/tomato3/tomatovenv/lib/python3.6/site-packages/adafruit_blinka/board/nvidia/jetson_nano.py”, line 3, infrom adafruit_blinka.microcontroller.tegra.t210 import pinFile “/home/hietrn/tomato3/tomatovenv/lib/python3.6/site-packages/adafruit_blinka/microcontroller/tegra/t210/pin.py”, line 4, inimport Jetson.GPIO as GPIO

ModuleNotFoundError: No module named ‘Jetson.GPIO’