Tensorrt7 Error:

Using onnx=1.6.0 i can generate the .onnx file successfuly. And I can export the engine using tnesorrt=6.0 , However when change the tensorrt to 7, the trt.OnnxParser not work, the network.num_layers is zeros.

Similar to below Dev talk topic:
https://devtalk.nvidia.com/default/topic/1068661/tensorrt/tensorrt7-parse-error

Thanks