SDKApplicationDelegate Use of unresolved identifier

Its because SDKApplicationDelegate is changed to ApplicationDelegate

func application(_ app: UIApplication, open url: URL,
                 options: [UIApplication.OpenURLOptionsKey: Any]) -> Bool {
    if ApplicationDelegate.shared.application(app, open: url, options: options) {
        return true
    }
    return false
}

One more thing to do

class AppDelegate: UIResponder, UIApplicationDelegate

Also import these two pods

import FBSDKCoreKit
import FBSDKLoginKit 

To be able to have facebook login add these 2 methods

func application(_ app: UIApplication,open url: URL,options: [UIApplication.OpenURLOptionsKey : Any] = [:]) -> Bool{

    if #available(iOS 9.0, *) {
        let sourceApplication: String? = options[UIApplication.OpenURLOptionsKey.sourceApplication] as? String
        return FBSDKApplicationDelegate.sharedInstance().application(app, open: url,sourceApplication: sourceApplication, annotation: nil)
    }

    return true
}

func application(_ application: UIApplication, open url: URL, sourceApplication: String?, annotation: Any) -> Bool {

    return FBSDKApplicationDelegate.sharedInstance().application(application, open: url as URL?, sourceApplication: sourceApplication, annotation: annotation)
}

---

import FBSDKCoreKit

import FBSDKLoginKit

Details

• Xcode Version 10.3 (10G8)
• Swift 5
• FacebookCore (0.7.0)

Solution

just replace SDKApplicationDelegate with ApplicationDelegate

Code

import FacebookCore

//....

func application(_ application: UIApplication, didFinishLaunchingWithOptions launchOptions: [UIApplication.LaunchOptionsKey: Any]?) -> Bool {
    ApplicationDelegate.shared.application(application, didFinishLaunchingWithOptions: launchOptions)

    return true
}

//....

func application(_ app: UIApplication, open url: URL, options: [UIApplication.OpenURLOptionsKey : Any]) -> Bool {
    guard let urlScheme = url.scheme else { return false }
    if urlScheme.hasPrefix("fb") {
        return ApplicationDelegate.shared.application(app, open: url, options: options)
    }
    return true
}