hello friends

Actually my app was running fine in simulator..
while running it in the device the following error occurs


No rule to make target `\NokiaQtSDK\Symbian\SDK\epoc32\release\armv5\LIB\ qfacebook.dso', needed by
"\NokiaQtSDK\Symbian\SDK\epoc32\release\armv5\ lib" folder.
so anyone know hw to solve it