When trying to add a view into Main.storyboard and giving it any FBSDK... class like: FBSDKProfilePictureView from the dropdown list.
I'm receiving an error when running the project: Unknown class FBSDKProfilePictureView in Interface Builder file.
This is happening in both Swift and Obj-C applications after having no issues adding the framework (4.0.1 version) and implementing login.
I found a way to solve if I'm adding an outlet for the desired view than i'm not getting the error anymore and everything seems good.