About Distiller in github

I try to install Distiller and follow the instruction in ‘https://github.com/NervanaSystems/distiller#create-a-python-virtual-environment’, when I install the Distiller package:
I get this:

I don’t know what to do.
PS:My os is windows.

https://pytorch.org Please install pytorch before you install distiller.

I have already installed pytorch. Do you mean that I should install pytorch in the virtual environment ‘env’ ?

Please do this. I wonder if pip3 is installed with your main Python environment.

where python
where pip
where pip3
python -c "import torch"