I have created new blank activity and extended by ListAcivity. but it showing this error:


/images/forum/upload/2015-01-01/9cfc88372698b4172f4f20abcea949da.png



here is 'About Us' and 'Feedback' are two menu items. but there are no background behind them. so its looks like simple text.
this menu items should looks like this another picture but they doesn't:




/images/forum/upload/2015-01-01/6bcf65d91cef2b0e39e9c4ae5ced25ca.png