Firebase crashes out of the blue with "RepoExists" message

Question

My Firebase project (iOS, written in Objective-C) was working fine until out of the blue, when launching the app on the simulator, it crashes and I get this message:

Terminating app due to uncaught exception 'RepoExists', reason: 'createRepo called for Repo that already exists.'

I've tried deleting the derived data, restarting Xcode, etc. but to no avail, I can't find anything about this crash on Stack Overflow, Google or the Firebase docs either. Does anyone have any ideas?

Thanks for the help.

Answer 1

I moved the Database.database().ref() call to the main thread, solved the issue for me...

Answer 2

I do this and it helped to solve my problem, I have FirebaseManager and there are two methods, one of them is the configure that I call in AppDelegate in didFinishLaunchingWithOptions. I also call createDatabase in configure

private func createDatabase() {
    _ = Database.database().reference()
}

After that, you can create a DatabaseReference in any other thread.