iOS - Firebase error: Use of unresolved identifier FIRApp running supplied code

Question

When trying to configure XCode to work with Firebase 3, using the code in the setup docs gives me an error:

https://firebase.google.com/docs/ios/setup#add_the_sdk

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Answer 1

turns out that hoangpx answer is the right way to fix your bug, changing the pod module's name helps. But remember that when you try to run pod install it appears (or should if isn't already fixed):

Note: as of Cocoapods 1.0 ‘pod repo update’ does not happen on ‘pod install’ by default.

meaning you should do pod Firebase update first for updating to version 3.2.0 and later pod install