subsembly create file with apdu

Question

I am using subsembly smartcard api with APDU commands... i have problem with creating file:

CardCommandAPDU aSelectAPDU = new CardCommandAPDU(0x00, 0xE0, 0x00, 0x00, 3750);

I read in manual to create file, and it only said that i have to use E0, for other arguments it didnt say nothing... so what do i put for p1, p2 and cla nad send data?
I used just size and i got this back:

SW1:6B
SW2:00

It means that p1 or p2 is invalid! So what should i do? help