RuntimeError: Expected object of scalar type Bool but got scalar type Byte for argument #2 'other' in call to _th_and

[pzs7602]

I run the classwise semi-supervision demo guided by the readme, I have only one GPU so run the command as:
python shapeprop/tools/train_net.py --config-file configs/coco_voc_mask_rcnn_r50_fpn_1x.yml
and error occurs when executing:

File "/home/pzs/.pyenv/versions/3.7.8/lib/python3.7/runpy.py", line 263, in run_path
pkg_name=pkg_name, script_name=fname)
File "/home/pzs/.pyenv/versions/3.7.8/lib/python3.7/runpy.py", line 96, in _run_module_code
mod_name, mod_spec, pkg_name, script_name)
File "/home/pzs/.pyenv/versions/3.7.8/lib/python3.7/runpy.py", line 85, in _run_code
exec(code, run_globals)
File "/home/pzs/pzs/ShapeProp/shapeprop/tools/train_net.py", line 192, in
main()
File "/home/pzs/pzs/ShapeProp/shapeprop/tools/train_net.py", line 185, in main
model = train(cfg, args.local_rank, args.distributed)
File "/home/pzs/pzs/ShapeProp/shapeprop/tools/train_net.py", line 85, in train
arguments,
File "/home/pzs/pzs/ShapeProp/shapeprop/engine/trainer.py", line 69, in do_train
loss_dict = model(images, targets)
File "/home/pzs/.pyenv/versions/3.7.8/lib/python3.7/site-packages/torch/nn/modules/module.py", line 532, in call
result = self.forward(*input, **kwargs)
File "/home/pzs/pzs/ShapeProp/shapeprop/modeling/detector/generalized_rcnn.py", line 56, in forward
x, result, detector_losses = self.roi_heads(features, proposals, targets)
File "/home/pzs/.pyenv/versions/3.7.8/lib/python3.7/site-packages/torch/nn/modules/module.py", line 532, in call
result = self.forward(*input, **kwargs)
File "/home/pzs/pzs/ShapeProp/shapeprop/modeling/roi_heads/roi_heads.py", line 42, in forward
x, detections, loss_mask = self.mask(mask_features, detections, targets)
File "/home/pzs/.pyenv/versions/3.7.8/lib/python3.7/site-packages/torch/nn/modules/module.py", line 532, in call
result = self.forward(*input, **kwargs)
File "/home/pzs/pzs/ShapeProp/shapeprop/modeling/roi_heads/mask_head/mask_head.py", line 77, in forward
loss_mask = self.loss_evaluator(proposals, mask_logits, targets)
File "/home/pzs/pzs/ShapeProp/shapeprop/modeling/roi_heads/mask_head/loss.py", line 119, in call
labels, mask_targets, valid_inds = self.prepare_targets(proposals, targets)
File "/home/pzs/pzs/ShapeProp/shapeprop/modeling/roi_heads/mask_head/loss.py", line 91, in prepare_targets
valid_masks = (labels_per_image > 0) & matched_targets.get_field("valid_masks").to(dtype=torch.uint8)
RuntimeError: Expected object of scalar type Bool but got scalar type Byte for argument #2 'other' in call to _th_and

I think my coco datasets should be configured properly.
Ubuntu 20.04
CUDA 10.0(Nvidia 2080Ti)
PyTorch 1.4.0+cu100
Python 3.7.8