Not able to port qt to blackberry 10

I am trying to port qt to blackberry 10 for that i am selecting the qt version from tools/option/qtversion. When i manually select the qmake.exe from bbndk.it is saying that "the qt version is not properly installed plz run make install".I am using qt libraries 4.8.4.
but when i use qt library 4.6.4 the same issue rises..Plz help me for solution of portingt the application