Not only firebase got that issue GoogleMaps' framework too: ld: building for iOS Simulator, but linking in object file built for iOS, file '.../ios/Pods/GoogleMaps/Maps/Frameworks/GoogleMaps.framework/GoogleMaps' for architecture arm64 Note that building my App with Rosetta on Mbp M1 and xCode 12.4 do build, but shows a white screen. Logging Failed to initialize client context with error and lot of others bad stuff ! :/

Why is it sooo hard to work on iOS. Everything works like a charm on android. Only Apple make it hard for developers.