Se connecter à facebook ne fonctionne pas pour mon application iOS

Mon application dispose d'une configuration où les utilisateurs peuvent se connecter normalement via la saisie de courrier électronique et de mot de passe ou via leurs informations d'identification de connexion Facebook.

pour la manipulation de la connexion via Facebook, j'utilise les dépendances de Facebook via Cocoapods. De plus, j'avais récemment mis à jour ces dépendances. P>

Snippet Podfile: - P>

func application(_ application: UIApplication, didFinishLaunchingWithOptions launchOptions: [UIApplicationLaunchOptionsKey: Any]?) -> Bool {
    ....
    return FBSDKApplicationDelegate.sharedInstance().application(application, didFinishLaunchingWithOptions: launchOptions)

}

func application(_ application: UIApplication, open url: URL, sourceApplication: String?, annotation: Any) -> Bool {
    var handled = FBSDKApplicationDelegate.sharedInstance().application(application, open: url, sourceApplication: sourceApplication, annotation: annotation)
    if handled {
        return true
    }
    ....
    return handled
}

func application(_ app: UIApplication, open url: URL, options: [UIApplicationOpenURLOptionsKey : Any] = [:]) -> Bool {
    if FBSDKApplicationDelegate.sharedInstance().application(app, open: url, options: options) {
        return true
    }
    ....
    return true
}

func application(_ application: UIApplication, willFinishLaunchingWithOptions launchOptions: [UIApplicationLaunchOptionsKey : Any]? = nil) -> Bool {
    return FBSDKApplicationDelegate.sharedInstance().application(application, didFinishLaunchingWithOptions: launchOptions)
}