XCode build fails - firebase_auth not found

I have an app that I have been building with xCode without issue. The app is developed in Flutter. I am attempting to build this on an M1 Macbook Pro (and this is not the first time I build this app on my M1). Recently, however, I have run into a problem with my build. The specific error I am getting is "firebase_auth" not found. I have been using firebase_auth for several iterations of my app so it isn't anything new that I have introduced. I have seen many reports of this issue on StackOverflow and I have followed them (cleaning my project folder, flutter clean, removing pod files and recreating, etc.). Nothing has worked...I just can't get a clean build. I can, however, run a build from the command line using this command: flutter build ipa --flavor prod --export-options-plist ./assets/config/exportOptions.plist --dart-define=ENV=prod. The problem only occurs when I run my build inside of xCode. Very frustrating. Any suggestions you might have would be greatly appreciated.

XCode build fails - firebase_auth not found
 
 
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