【Tips】Install Admob with cocoapods, but Xcode showed build error

Install Admob with cocoapods, but Xcode showed build error.(2014/2/22)

  "_OBJC_CLASS_$_SKStoreProductViewController", referenced from:
      objc-class-ref in libGoogleAdMobAds.a(GADOpener.o)

How to fix. You need to add library that is “StoreKit.framework”