In my project, I found that allowing non-modular frameworks was not the fix. I had some problems too after upgrading to 7.3, but it's working now. Make sure you are using the latest frameworks...if you are, delete all FBSDK frameworks, re-download the Facebook SDK, and add FBSDK OREKIT, FBSDKLoginKit (if needed), and FBSDKShareKit (if needed) ** Make sure to check the copy items if needed box **. Clean the project and build it. If using CoccoaPods, I would make sure the frameworks are updated to the latest version. Hope this helps!