MissingPluginException(No implementation found for method init on channel plugins.flutter.io/google_sign_in) after publishing to Google Play Store

I asked a similar question before, but I am having trouble with Google Sign-in after publishing my app to internal and closed testing on the Play store. It works perfectly well on emulators for both Android and iOS, works great on real devices when I run it from my computer in debug and release modes, but once published to the Play store, everything breaks. The error I get is

MissingPluginException(No implementation found for method init on channel plugins.flutter.io/google_sign_in)

Is there anything in particular I'm missing? I have a feeling this is a one-step solution and I just can't find it.

https://stackoverflow.com/questions/65402445/missingpluginexceptionno-implementation-found-for-method-init-on-channel-plugin December 22, 2020 at 10:12AM