Comment by Peter N on "Create SwiftUI app with Firebase Authentication" | Hashnode

Peter N

SwiftUI/iOS Dev Beginner

Dec 5, 2021

Thanks for the Kevin! I've been looking all over for the SwiftUI implementation of Firebase since Google owns docs haven't been updated from StoryBoards as of yet.

I completed you tutorial and I'm getting a fatal error when I try to run LoginView as a Live Preview and actually go through the process of logging into my Gmail account.

The Error:


SwiftUI/EnvironmentObject.swift:70: Fatal error: No ObservableObject of type LoginViewModel found. A View.environmentObject(_:) for LoginViewModel may be missing as an ancestor of this view.

Have you run into this?

Thanks.

Kevin Furjan

Software engineer

Dec 5, 2021

Hi Peter, I'm glad you found this article useful. :)

Regarding your error, Live Preview is good when you try to test something in your current view, i.e. make sure that animations are correct, but end-to-end test should be done in an emulator. Especially in this case since LoginViewModel is EnvironmentObject initialized in DemoApp on ContentView() but that piece of code was never run in Live Preview.

Try running your app in emulator or on physical device and let me know if your error is still happening.

Thank youKevin Furjan ! That makes sense, I’m still a beginner and your help is much appreciated.

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