i have a strange error when i was using firebase from google.
when i trying to init the Fire base setup the ref address for it using this code here
I ran into this same problem. You might be referring to some sample code for Firebase.com. The API has been updated and is no longer referred to as "Firebase.com" It's not clear what the new name is -- ?
Anyway, the link below guides you through updating your podfile to include:
pod 'Firebase/Core'
pod 'Firebase/Database'
pod 'Firebase/Auth'
https://firebase.google.com/support/guides/firebase-ios
remember to run
pod update
and changing your code to call the new methods. It's working for me with Xcode 7.2