No module named 'segmentation_models_pytorch.common.blocks'

[pyaf]

Hi,

I'm working in a internet restricted system. I've installed segmentation_models.pytorch using source code using pip install ..
Now when I try to import it, I get following error:

---------------------------------------------------------------------------
ModuleNotFoundError                       Traceback (most recent call last)
<ipython-input-3-b9e13fa886e0> in <module>
----> 1 import segmentation_models_pytorch as smp

/opt/conda/lib/python3.6/site-packages/segmentation_models_pytorch/__init__.py in <module>
----> 1 from .unet import Unet
      2 from .linknet import Linknet
      3 from .fpn import FPN
      4 from .pspnet import PSPNet
      5 

/opt/conda/lib/python3.6/site-packages/segmentation_models_pytorch/unet/__init__.py in <module>
----> 1 from .model import Unet

/opt/conda/lib/python3.6/site-packages/segmentation_models_pytorch/unet/model.py in <module>
----> 1 from .decoder import UnetDecoder
      2 from ..base import EncoderDecoder
      3 from ..encoders import get_encoder
      4 
      5 

/opt/conda/lib/python3.6/site-packages/segmentation_models_pytorch/unet/decoder.py in <module>
      3 import torch.nn.functional as F
      4 
----> 5 from ..common.blocks import Conv2dReLU
      6 from ..base.model import Model
      7 

ModuleNotFoundError: No module named 'segmentation_models_pytorch.common.blocks'

Any ideas how this error can be solved?