Can't debug Raspberry Pi using visual studio python tools

I'm trying to debug python code on my RPi from VS2013 using visual studio python tools, but couldn't connect to python console running on Pi all the time.

this is my frag.in Pi code:

import ptvsd
ptvsd.enable_attach('secret',address = ('0.0.0.0',5678))
ptvsd.wait_for_attach()

for i in range(10):
    print (i)
print ('hello visual studio')

      

        
        
        
      

    

Im using Python3 in both machines and using the latest ptvsd i belive (PTVS 2.1 RC2 VS 2013)

When I try to connect, I get an error that says

Remote server at tcp://secret@rgpi:5678/ is not a Python tools for Visual Studio remote debugging server, or it version is not supported.

      

        
        
        
      

    

where rgpi is the hostname of my Pi, any help would be much appreciated, thanks