hi , i like using the method back-translation (data augmentation)  but appears me an error and i don’t know how solves . this is my code :

import torch
en2de = torch.hub.load(‘pytorch/fairseq’, ‘transformer.wmt19.en-de.single_model’, tokenizer=‘moses’, bpe=‘fastbpe’)
de2en = torch.hub.load(‘pytorch/fairseq’, ‘transformer.wmt19.de-en.single_model’, tokenizer=‘moses’, bpe=‘fastbpe’)
and this is error:


DistutilsClassError: command class <class ‘torch.utils.cpp_extension.BuildExtension’> must subclass Command