PoyntOS pyhton script error

Hi ,
I am trying to install the poynt emulator using the python script but it is not working

The error i get is :

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C:\Users\GACOCA.android\avd>C:\Python27\python.exe C:\Users\GACOCA\Desktop\poynt\setup_poynt_os.py

Uninstalling existing apps…

[NOTE: Some failures are ok to ignore here if a previous version was not found.]

Launcher:
(‘Error:’, ‘The system cannot find the file specified’)
*** Please make sure adb is in your PATH variable ***

#########################

Please help me with the matter

Regards