IndexError: tensors used as indices must be long, byte or bool tensors

[williamlzw]

File "E:\minimal-diffusion-main\main_single.py", line 38, in / unsqueeze3x(scalars.alpha_bar[t].sqrt()) IndexError: tensors used as indices must be long, byte or bool tensors

self.get_x0_from_xt_eps = lambda xt, eps, t, scalars: ( self.clamp_x0( 1 / unsqueeze3x(scalars.alpha_bar[t].sqrt()) * (xt - unsqueeze3x((1 - scalars.alpha_bar[t]).sqrt()) * eps) ) )