AttributeError: module 'torch' has no attribute 'device'

This error occurs when you try to access the `device` attribute of the `torch` module in PyTorch, but it doesn't exist. One possible reason for this error is that you are using an older version of PyTorch that doesn't support this attribute.

To fix this error, you can try upgrading your PyTorch version to the latest one by running the following command:

pip install torch --upgrade

If you are still facing the same issue after upgrading PyTorch, you can try importing the `torch` module again and then accessing the `device` attribute:

import torch
device = torch.device('cuda' if torch.cuda.is_available() else 'cpu')

This code will check if a CUDA-enabled GPU is available and assign the `device` accordingly. If no GPU is available, it will assign the CPU as the `device`.