RuntimeError: Value cannot be converted to type float without overflow: inf

[mexiQQ]

Traceback (most recent call last):
File "train.py", line 257, in
train()
File "train.py", line 173, in train
loss_l_pa1l, loss_c_pal1 = criterion(out[:3], targets)
File "/home/ubuntu/anaconda3/envs/pytorch_p27/lib/python2.7/site-packages/torch/nn/modules/module.py", line 325, in call
result = self.forward(*input, **kwargs)
File "/home/ubuntu/DSFD.pytorch/layers/modules/multibox_loss.py", line 95, in forward
loss_c = log_sum_exp(batch_conf) -
File "/home/ubuntu/DSFD.pytorch/layers/bbox_utils.py", line 240, in log_sum_exp
return torch.log(torch.sum(torch.exp(x - x_max), 1, keepdim=True)) + x_max
RuntimeError: value cannot be converted to type float without overflow: inf

Can anyone help me fix this problem?