fab setup command fails

Hi,

I am trying to setup this application in windows.. while running fab setup (step3) i am getting the following error..

D:\aPaaS\Aws\projects\lambda-ecs-worker-pattern-master>fab setup
Traceback (most recent call last):
File "d:\apaas\aws\softwares\python2.7\lib\site-packages\fabric\main.py", line 666, in main
docstring, callables, default = load_fabfile(fabfile)
File "d:\apaas\aws\softwares\python2.7\lib\site-packages\fabric\main.py", line 167, in load_fabfile
imported = importer(os.path.splitext(fabfile)[0])
File "D:\aPaaS\Aws\projects\lambda-ecs-worker-pattern-master\fabfile.py", line 43, in
SSH_KEY_DIR = os.environ['HOME'] + '/.ssh'
File "d:\apaas\aws\softwares\python2.7\lib\os.py", line 425, in __getitem__
return self.data[key.upper()]
KeyError: 'HOME'

Please let me know how to resolve this