Cannot see header files in the revmob or any other external framework

Hi there. I am trying to add revmob and other ad network but when I am adding the framework by dragging or from Build Phases-> Link Binary with Libraries, I cannot see the header files in the framework(attached screenshot) and as a result when I am trying to include header file (for example #import <RevMobAds/RevMobAds.h> ) I keep on getting file not found. Any solutions? thanks Please help me!


Screen Shot 2014-01-14 at 11.10.26 pm.png (100.3 KB)