MenuDrawer in Windows Phone 8

Hi,

 

I am new in the development of windows phone apps.Can anyone help me to find out how to use menudrawer in wp8.I have added the library file through the nudget and included it in my xaml.

xmlns:drawerLayout="using:DrawerLayout"

But when I am using it below:

 

It is showing error in the text written in bold,that "the name drawerLayout.Drawerlayout does not exist in the namespace".