Cant extract hash from JTR for wallet.dat

I am using bitcoin2john.py and every single time I get this error..


ERROR:root:22:Invalid argument -- bitcoin2jo
hn.py: unexpected file type or format
ERROR:root:Couldn't open wallet.dat/main. Try quitting Bitcoin and running this
again.


I have tried running it on a VM even with the same end result.. I have tried with a completely fresh encrypted wallet.dat..

same result everytime.. was just wondering if anybody has any idea on what to do so I can import into ocl