Compiling c from torchvision

Hi folks,

I’ve been trying to use the built in NMS function in torchvision.ops but I keep getting this error:
undefined symbol: _ZN6caffe26detail37_typeMetaDataInstance_preallocated_29E
I have already looked at other posts, but have not found any answers.

torch 1.4
torchvision 0.4
gcc 7.4.0-ubuntu~18.04.1

Does anyone know how to solve this?

How did you built this op and could you post the build log, please?
Did you also build torchvision manually with GPU support?

Yes I am using GPU and building it using python 3.7
This issue has been solved using torchvision 0.5.0