Cannot use Firebase authentication: FIRAuth.auth does not work

Question

I have been struggling with this issue for a few days, I am a rookie and I am not able to find a solution. I am trying to create a user sign up and log in page using XCode 8.3.3 and am using Firebase as database.

My code is as follows:

import UIKit import Firebase import FirebaseAuth class SignUpViewController: UIViewController { //Outlets @IBOutlet weak var emailTextField: UITextField! @IBOutlet weak var passwordTextField: UITextField! //Sign Up Action for email @IBAction func createAccountAction(_ sender: AnyObject) { if emailTextField.text == "" { let alertController = UIAlertController(title: "Error", message: "Please enter your email and password", preferredStyle: .alert) let defaultAction = UIAlertAction(title: "OK", style: .cancel, handler: nil) alertController.addAction(defaultAction) present(alertController, animated: true, completion: nil) } else { FIRAuth.auth().createUser(withEmail: emailTextField.text!, password: passwordTextField.text!) { (user, error) in if error == nil { print("You have successfully signed up") //Goes to the Setup page which lets the user take a photo for their profile picture and also chose a username let vc = self.storyboard?.instantiateViewController(withIdentifier: "Home") self.present(vc!, animated: true, completion: nil) } else { let alertController = UIAlertController(title: "Error", message: error?.localizedDescription, preferredStyle: .alert) let defaultAction = UIAlertAction(title: "OK", style: .cancel, handler: nil) alertController.addAction(defaultAction) self.present(alertController, animated: true, completion: nil) } } } }

The part that has issue is FIRAuth.auth. The error says "FIRAuth has been renamed to Auth" and if I applied such fix, although the built became successful, I could only see nothing but a white screen. If I delete the code then I can see a normal sign in screen created earlier.

Another thing is when I type import FirebaseAuth a red line appeared in the suggested word list that crossed out FirebaseAuth, I still proceeded.

Please help. I don't know why it happens. Could there be any missing pod files? Much appreciated.

Storyboard: storyboard

@ArpitJain how do I update the SDK? I tried pod update in the terminal. — Andrew Qin
– Andrew Qin, Commented Jun 15, 2017 at 5:44

Vlad Pulichev · Accepted Answer · 2017-06-15 05:23:40Z

9

FIRAuth became a Auth in last Firebase version. link to Docs

import Firebase

Then, in the application:didFinishLaunchingWithOptions: method, initialize the FirebaseApp object:

// Use Firebase library to configure APIs FirebaseApp.configure()

Now you can use in your file (also import Firebase)

Auth.auth().createUser(withEmail: email, password: password) { (user, error) in // ... }

Hope it helps

answered Jun 15, 2017 at 5:23

Vlad Pulichev

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12 Comments

Andrew Qin Over a year ago

I tried, and the built was successful. But I got a white screen, not my initial signup screen

Vlad Pulichev Over a year ago

@AndrewQin have you inited rootviewcontroller?

Arpit Jain Over a year ago

@AndrewQin Check for navigation flow

Vlad Pulichev Over a year ago

@AndrewQin In App delegate in function func application(_ application: UIApplication, didFinishLaunchingWithOptions launchOptions: [UIApplicationLaunchOptionsKey: Any]?) -> Bool { you need to have like self.window?.rootViewController = self.storyboard?.instantiateViewController(withIdentifier: "LoginController") or set initial view controller in storyboard.

Andrew Qin Over a year ago

I have it as initial view controller

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Kiran · Accepted Answer · 2020-04-26 01:42:36Z

You need to put this line into your pod file- pod 'Firebase/Auth'. do pod install after and you should be able to do get rid of the errors regarding Auth.

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