Unable to build - Step 3

[colingoodman]

Ran pod install --repo-update as instructed, but in SignInViewController I get "No such module 'GoogleSignIn'"

I have updated cocoa pods and attempted a clean install by cloning the repo again; same result.

[colingoodman]

This comment #176 (comment) resolved the above problem, but it yielded the following problems: FirebaseCore/FirebaseCore.h' file not found and Could not build Objective-C module 'Firebase'

There is a stack overflow page related to this, but I am worried I am going down a weird rabbit hole. Is there something simple I am missing to this tutorial?