builder_->buildCudaEngine(*network_) return nullptr


When I run “builder -> buildCudaEngine(* network)”, the nullptr will return, what could be the reason?

I used it on ubuntu, how can I view the stack of “nvinfer1”,does it have an open source code?

I had set a logger, and print log level above “Severity::kINFO”. But I found nothing. How could I see the debug info?

I will add the detail version latter, could you please give some advice first.


TensorRT Version:
GPU Type:
Nvidia Driver Version:
CUDA Version:
CUDNN Version:
Operating System + Version:
Python Version (if applicable):
TensorFlow Version (if applicable):
PyTorch Version (if applicable):
Baremetal or Container (if container which image + tag):

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Hi @daohu527,
Please refer the following link.

There is no helpful info, could you pls give me some method for debug,or some list of reasons will be ?

Hi @daohu527,

Please enable kVERBOSE to dump more logs.

Thank you.