Error: No Firebase App '[DEFAULT]' has been created - call firebase.initializeApp()
ios/{Project_name}/AppDelegate.swift
didFinishLaunchingWithOptions launchOptions: [UIApplication.LaunchOptionsKey: Any]? = nil
  ) -> Bool {
    FirebaseApp.configure() // 在這位置加入這行
   let delegate = ReactNativeDelegate()
    let factory = ExpoReactNativeFactory(delegate: delegate)
    delegate.dependencyProvider = RCTAppDependencyProvider()
  }
再重新打包dev build
cd ios 
rm -rf Pods Podfile.lock 
pod install 
cd ../ 
npx expo run:ios