Cast from 'FIRRemoteConfigValue!' to unrelated type 'String' always fails

Question

I have about 50 of this same warning in my project. Since updating, all of my functions where I call snapshot.value["something"] as! String are failing. They all used to work before. I'm not even using the RemoteConfig feature. I just want to retrieve data.

Example from my User class:

init(snapshot: FIRDataSnapshot) {
        firstName = snapshot.value!["firstName"] as! String
        lastName = snapshot.value!["lastName"] as! String
}

Example from a function (I can give more examples but its basically more of the same):

func loadProfileImage(ref:FIRDatabaseReference) {
        ref.observeEventType(.Value, withBlock: {snapshot in
            let base64String = snapshot.value!["profileImgURL"] as! String
            let decodedData = NSData(base64EncodedString: base64String, options:NSDataBase64DecodingOptions.IgnoreUnknownCharacters)
            if let decodedImage = UIImage(data: decodedData!) {
                self.profileImgImageView.contentMode = .ScaleAspectFill
                self.profileImgImageView.layer.cornerRadius = self.profileImgImageView.frame.size.width / 2
                self.profileImgImageView.clipsToBounds = true
                self.profileImgImageView.image = decodedImage as UIImage
            }
        })
    }

The app runs because they are just warnings but the warnings are correct because the app fails as soon as it tries to retrieve any data.

Answer 1

So apparently having the Firebase/RemoteConfig pod causes this error. As soon as I uninstalled the pod, the warning went away. Definitely putting this in as a bug.

Answer 2

I have faced same issue, Below code work me perfectely.

Use valueForKey Instead of [] bracket access value

Then all value goes away...

For Example

Below code give a warning...

 let someArray = resource["someArrayKey"] as? NSArray
 let someBool = resource["someBoolKey"] as? Bool

Use below code

 let someArray = resource.valueForKey("someArrayKey") as? NSArray
 let someBool = resource.valueForKey("someBoolKey") as? Bool