AttributeError: 'NoneType' object has no attribute 'shape'

Description

I am using TensorRT engine for inference using Jetson TX2

I converted tensorflow freezed graph model.pb file of face detector FaceBoxes to faceboxes.onnx file first.
And while creating the engine.plan from faceboxes.onnx file, I am facing the following issue.

I have included the error log and required files as well.
Any help will be apprecieted. Thanks

Unsupported ONNX data type: UINT8 (2)
Traceback (most recent call last):
File “step-3-fb.py”, line 20, in
engine = eng.build_engine(onnx_path, shape= shape)
File “/home/nvidia/attendance-system/optimization/engine_fb.py”, line 18, in build_engine
network.get_input(0).shape = shape
AttributeError: ‘NoneType’ object has no attribute ‘shape’

Environment

TensorRT Version : 7.1.3.0
GPU Type : Jetson TX2
CUDA Version : 10.2.89
CUDNN Version : 8.0.0.180
Operating System + Version : jetpack 4.4.1
TensorFlow Version (if applicable) : 2.3.1+nv20.10

Relevant Files

faceboxes3.onnx (3.9 MB)
engine_fb.py (1.1 KB)
step-3-fb.py (625 Bytes)
model.pb (4.0 MB)

Steps to Reproduce

Hi @ammaz99,

Looks like you’re using UINT8. Currently UINT8 is not supported. You need to use INT8 instead.
Hope following temporary fix may help you.

Thank you.