Importing exception about torch-radon

[Guaishou74851]

# python 
Python 3.6.7 (default, Oct 21 2018, 04:56:05) 
[GCC 5.4.0 20160609] on linux
Type "help", "copyright", "credits" or "license" for more information.
>>> import numpy as np
>>> from torch_radon import Radon, RadonFanbeam
Importing exception
Importing exception
>>> my_radon = Radon(362, np.linspace(0, np.pi, 60, endpoint=False))
Traceback (most recent call last):
  File "<stdin>", line 1, in <module>
  File "/usr/local/lib/python3.6/dist-packages/torch_radon/__init__.py", line 169, in __init__
    rays_cfg = RaysCfg(resolution, resolution, det_count, det_spacing, len(angles), clip_to_circle)
NameError: name 'RaysCfg' is not defined
>>> 
Exception ignored in: <bound method BaseRadon.__del__ of <torch_radon.Radon object at 0x7f80e16b84e0>>
Traceback (most recent call last):
  File "/usr/local/lib/python3.6/dist-packages/torch_radon/__init__.py", line 140, in __del__
    self.noise_generator.free()
AttributeError: 'Radon' object has no attribute 'noise_generator'

[stefenmax]

Have u solved it yet?
You may didn't complied it like
python setup.py
But I can't comile it with the upper code,could u help me? thx