title: No such module 'FBAudienceNetwork' in XCode 9 Swift 4
body: <p>I installed the FBAudienceNetwork (version 4.26.0) with CocoaPods (version 1.3.1). I followed the official manual as published at <a href="https://developers.facebook.com/docs/audience-network/ios" rel="nofollow noreferrer">https://developers.facebook.com/docs/audience-network/ios</a>, but the Xcode still not recognized the framework.</p>
  
  <p>Just to be clear - I opened the project from xcworkspace file.</p>
  
  <p><a href="https://i.stack.imgur.com/26GN0.png" rel="nofollow noreferrer"><img src="https://i.stack.imgur.com/26GN0.png" alt="enter image description here"></a></p>
  
  <p>I tried the following steps with no success:</p>
  
  <ol>
  <li>Install the framework manually, adding the ~/Documents/FacebookSDK path to Framework Search Path</li>
  <li>Make sure that the pods project compiled using Swift 4</li>
  <li>Added also FBSDKCoreKit (with Bolts) and FBSDKShareKit (both frameworks imported successfully)</li>
  <li>Clean the project, delete DerivedData and also clean the pods cache and reinstalling the pods</li>
  </ol>
  
  <p>Nothing worked so far. Anyone faced the same issue and know the reason?</p>