CUDA version error and generate nothing about impersonator HOT 1 OPEN

when I used "python demo_swap.py --gpu_ids 0 --batch_size 1", it reported errors,
`load face model from assets/pretrains/sphere20a_20171020.pth
step: 49; total: 3.061088; cyc: 0.145273; str: 0.061302; fid: 0.992965; msk: 0.000475: 100%|█████████████████████████████████████████████████████████| 50/50 [00:33<00:00, 1.40it/s]

                    Personalization: completed...

                    Swapping: ./assets/src_imgs/imper_A_Pose/009_5_1_000.jpg wear the clothe of ./assets/src_imgs/fashion_woman/fashionWOMENBlouses_Shirtsid0000666802_4full.jpg...

Traceback (most recent call last):
File "demo_swap.py", line 62, in
visualizer=visualizer)
File "/home/lgy/.local/lib/python3.7/site-packages/torch/autograd/grad_mode.py", line 43, in decorate_no_grad
return func(*args, **kwargs)
File "/home/lgy/PycharmProjects/impersonator/models/swapper.py", line 213, in swap
src_part_mask = (torch.sum(src_info['part'][:, selected_ids, ...], dim=1) != 0).bool()
AttributeError: 'Tensor' object has no attribute 'bool'
`

from impersonator.