Firebase References undeclared

Question

I created a new Xcode project, added the \'Firebase\' pod to my pod file and installed it, and added the Google-services.plist file and the rest according to the Firebase docume

Answer 1

As in swift4 the 'FIRDatabaseReference' has been renamed to 'DatabaseReference'

So, use:

var ref:DatabaseReference!

Answer 2

EDIT: I found the real problem behind. Firebase had update. User need to update the firebase version via cocopod. After update the cocopod, can use everything normally same as firebase Doc.

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I have the same problem, but cannot fix it by updating the pod-file.

Finally, I find out a solution.

Google teach us to import only

import Firebase

Just add:

import FirebaseDatabase

and everything will become fine

Answer 3

On your Podfile, add additional line of

pod 'Firebase/Database'

Then on your code section

import FirebaseDatabase

And it should work now, with the following code:

var ref: DatabaseReference!

Answer 4

In your Podfile, add pod

pod 'Firebase/Database'

Then import Firebase Database in your ViewController

import FirebaseDatabase

Create a globle var ref that you can use it anywhere in viewcontroller

var ref: DatabaseReference!

Now, In viewDidLoad Define the ref

ref = Database.database().reference()

Answer 5

Just had the same problem, but after a while I realized that I was missing an entry in the pod-file, your pod-file should contain:

pod 'Firebase/Database'

Hope it works now :)

Answer 6

Problem solved by removing "FIR" form the words ("FIRDatabaseReference" and "FIRDatabaseHandle")

Also that import "Firebase" in the viewController