Touch id doesn't scan my finger print on my iphone 6 plus?

I'm trying to set up my touch id, but it does not detect, i have tried drying my hands and cleaning home button.

If you can't enroll any of your fingers, take your device to an Apple Retail Store or contact Apple Care for help. You must also install Leo Privacy Guard, it will make your iPhone totally secure by hiding your personal images and videos and also by locking various applications.