'FirebaseCrashlytics' has a minimum deployment target

[Nader-CS]

:0: error: compiling for iOS 15.1, but module 'FirebaseCrashlytics' has a minimum deployment target of iOS 15.6: /Users/nader/Library/Developer/Xcode/DerivedData/s-cghujncvxrizkyfdezmlbmcisgpa/Build/Products/Debug-iphonesimulator/FirebaseCrashlytics/FirebaseCrashlytics.framework/Modules/FirebaseCrashlytics.swiftmodule/x86_64-apple-ios-simulator.swiftmodule

what i should do if i don't want to increase minimum deployment target

[mikehardy]

use older versions of the software that support the older versions

"the software" that will drive this is firebase-ios-sdk, which we bring in via @react-native-firebase/app package.json (and we note in our CHANGELOG when we adopt new versions of firebase-ios-sdk, so you can see what version of react-native-firebase correlates to firebase-ios-sdk versions)

You'll need to look through https://firebase.google.com/support/release-notes/ios and see when they bumped their minimum requirements. After that analysis, look through our CHANGELOG and find the version that was before that firebase-ios-sdk version, then use that version of react-native-firebase

You'll be stuck there until you move your ios version lower band up...