title: Implicit declaration of function 'FBSDK_NOT_DESIGNATED_INITIALIZER' is invalid in C99 Expected ')'
body: <p>I'm using Facebook SDK for iOS 4.6.0 and just today above error encountered after updating cocoapods to 0.38.2. I'm not sure this error has anything to do with  cocoapods.</p>
  
  <p>Error screenshot:
  <a href="https://i.stack.imgur.com/WziF9.png" rel="noreferrer"><img src="https://i.stack.imgur.com/WziF9.png" alt="enter image description here"></a></p>