The audience in ID Token [com.name.apop] does not match the expected audience.

Code Block 
 Auth.auth().signIn(with: credential) { (authResult, error) in

Code Block 
nil credential = OAuthProvider.credential Optional(Error Domain=FIRAuthErrorDomain Code=17004 "The audience in ID Token [com.name.app] does not match the expected audience." UserInfo={NSLocalizedDescription=The audience in ID Token [com.name.app] does not match the expected audience., FIRAuthErrorUserInfoNameKey=ERROR_INVALID_CREDENTIAL})
Optional("The audience in ID Token [com.name.app] does not match the expected audience.")

To complete set up, add this authorization callback URL to your app configuration in the Apple Developer Console. Additional steps may be needed to verify ownership of this web domain to Apple. 

Code Block   
func authorizationController(controller: ASAuthorizationController, didCompleteWithAuthorization authorization: ASAuthorization) {
  if let appleIDCredential = authorization.credential as? ASAuthorizationAppleIDCredential {
   guard let nonce = currentNonce else {
    fatalError("Invalid state: A login callback was received, but no login request was sent.")
   }
   guard let appleIDToken = appleIDCredential.identityToken else {
    print("Unable to fetch identity token")
    return
   }
   guard let idTokenString = String(data: appleIDToken, encoding: .utf8) else {
    print("Unable to serialize token string from data: \(appleIDToken.debugDescription)")
    return
   }
     
    print("credential = OAuthProvider.credential")
   // Initialize a Firebase credential.
   let credential = OAuthProvider.credential(withProviderID: "apple.com",
                        idToken: idTokenString,
                      rawNonce: nonce)
    //Auth.auth().createUser(withEmail: T##String, password: T##String, completion: T##AuthDataResultCallback?##AuthDataResultCallback?##(AuthDataResult?, Error?) -> Void)
   // Sign in with Firebase.
   Auth.auth().signIn(with: credential) { (authResult, error) in
     
    print(Auth.auth().currentUser?.uid ," credential = OAuthProvider.credential ", error)