please help !! . I can't Create any SharedPrefrences

I usually use this code for create sharedPrefs file :

SharedPrefrences SP = getSharedPrefrences("MYPREF",0);
SP.getString("Username","x");

But now if i see this directory :

"/data/data/packageName/" 

There is not any shared_prefs directory. Another thing : if I use Editor its work properly. Please help me ..

via Chebli Mohamed