How to fix: Swift pods cannot yet be integrated as static libraries FirebaseCoreInternal-library

I recently created a new app React Native 0.69.1 with Firebase 15.1.1 and needed  to integrate Firebase and I got  error  the below when doing "pod install"

The Swift pod FirebaseCoreInternal-library depends upon GoogleUtilities-library, which does not define modules. To opt into those targets generating module maps (which is necessary to import them from Swift when building as static libraries), you may set use_modular_headers! globally in your Podfile, or specify :modular_headers => true for particular dependencies.

after some research, I solved the issue by adding modular_headers to Firebase

     pod 'Firebase', :modular_headers => true
     pod 'FirebaseCore', :modular_headers => true
     pod 'GoogleUtilities', :modular_headers => true
     $RNFirebaseAsStaticFramework = true

Podfile will look like this

require_relative '../node_modules/react-native/scripts/react_native_pods'
require_relative '../node_modules/@react-native-community/cli-platform-ios/native_modules'

platform :ios, '12.4'
install! 'cocoapods', :deterministic_uuids => false

target 'ReactNativeTest' do
  config = use_native_modules!

  # Flags change depending on the env values.
  flags = get_default_flags()
 
  pod 'Firebase', :modular_headers => true
  pod 'FirebaseCore', :modular_headers => true
  pod 'GoogleUtilities', :modular_headers => true
  $RNFirebaseAsStaticFramework = true

  use_react_native!(
    :path => config[:reactNativePath],
    # to enable hermes on iOS, change `false` to `true` and then install pods
    :hermes_enabled => flags[:hermes_enabled],
    :fabric_enabled => flags[:fabric_enabled],
    # An absolute path to your application root.
    :app_path => "#{Pod::Config.instance.installation_root}/.."
  )

  target 'ReactNativeTestTests' do
    inherit! :complete
    # Pods for testing
  end

  # Enables Flipper.
  #
  # Note that if you have use_frameworks! enabled, Flipper will not work and
  # you should disable the next line.
  use_flipper!()

  post_install do |installer|
    react_native_post_install(installer)
    __apply_Xcode_12_5_M1_post_install_workaround(installer)
  end
end