Calib.table not created Deepstream

[Alberto1404]

Hello there,
I am attempting to follow this guide along with the one from yolov5 (see here).
Although it happens to me when using DeepStream, the error is related to Tensor-RT
I am getting the following error when launching deepstream:

File does not exist: calib.table
terminate called after throwing an instance of 'cv::Exception'
what(): OpenCV(4.1.1) /home/nvidia/host/build_opencv/modules/imgproc/src/resize.cpp:3720: error: (-215:Assertion failed)!ssize.empty() in function 'resize'
Aborted (core dumped)

Cuda version: 10.2
cuDNN version: 8.0
Tensor-RT version: 8.0.1.6
OpenCV version: 4.1.1
DeepStream version: 6.0

Any help is appreciated