setListener not getting context inside fragment

[saifmunir65]

in my case, i added cardstack inside my class which is extending from fragment. it does not allow me to pass context in mCardStack.setListener() that error says "setListener (cardstack.CardStack.cardEventListener) in CardStack cannot be applied to (android.content.Context)"
i tried by passing "getActivity()" , "getApplicationContext()", getActivity().getApplicationContext() but all in vein. kindly tell me what i am to do with this error.
thanks.