unsupported option '-G' for target 'arm64-apple-ios11.0-simulator'

Question

This is my PodFile

platform :ios, min_ios_version_supported
use_modular_headers!
prepare_react_native_project!

flipper_config = ENV['NO_FLIPPER'] == "1" ? FlipperConfiguration.disabled : FlipperConfiguration.enabled

linkage = ENV['USE_FRAMEWORKS']
if linkage != nil
  Pod::UI.puts "Configuring Pod with #{linkage}ally linked Frameworks".green
  
  use_frameworks! :linkage => linkage.to_sym
end

target 'Fixturefix' 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
  pod 'react-native-config/Extension', :path => '../node_modules/react-native-config'

  $RNFirebaseAsStaticFramework = true
  
  use_react_native!(
    :path => config[:reactNativePath],
    :hermes_enabled => flags[:hermes_enabled],
    :fabric_enabled => flags[:fabric_enabled],
    :flipper_configuration => flipper_config,
    :app_path => "#{Pod::Config.instance.installation_root}/.."
  )

  target 'FixturefixTests' do
    inherit! :complete
  end

  post_install do |installer|
    react_native_post_install(
      installer,
      :mac_catalyst_enabled => false
    )
    __apply_Xcode_12_5_M1_post_install_workaround(installer)
    installer.pods_project.targets.each do |target|
      if ['FirebaseCoreInternal', 'GoogleUtilities'].include?(target.name)
        target.build_configurations.each do |config|
          config.build_settings['DEFINES_MODULE'] = 'YES'
        end
      end
    end
  end
end

I am using a MacBook M1 with Sequoia 15.0 Xcode version 16.0 Then I am getting this error constantly when I am building on Xcode. I have no issue building and running a new project. unsupported option '-G' for target 'arm64-apple-ios11.0-simulator' Things I have tried.

rm -rf Podfile
rm -rf Podfile.lock
Pod install

Also tried 
pod deintegrate
pod install 

Double checked the iOS version of 16.0 I have lost several days on this please help,

Answer 1

I have resolved using the same approach here: BoringSSL-GRPC unsupported option '-G' for target 'arm64-apple-ios15.0'

Pretty much just modify your podfile as:

  pod 'Firebase', :modular_headers => true
  pod 'FirebaseCore', :modular_headers => true
  pod 'GoogleUtilities', :modular_headers => true
  pod 'react-native-config/Extension', :path => '../node_modules/react-native-config'

  $RNFirebaseAsStaticFramework = true
  
  use_react_native!(
    :path => config[:reactNativePath],
    :hermes_enabled => flags[:hermes_enabled],
    :fabric_enabled => flags[:fabric_enabled],
    :flipper_configuration => flipper_config,
    :app_path => "#{Pod::Config.instance.installation_root}/.."
  )

  target 'FixturefixTests' do
    inherit! :complete
  end

  post_install do |installer|
    react_native_post_install(
      installer,
      :mac_catalyst_enabled => false
    )
    __apply_Xcode_12_5_M1_post_install_workaround(installer)
    installer.pods_project.targets.each do |target|
      
      if target.name == 'BoringSSL-GRPC'
        target.source_build_phase.files.each do |file|
          if file.settings && file.settings['COMPILER_FLAGS']
            flags = file.settings['COMPILER_FLAGS'].split
            flags.reject! { |flag| flag == '-GCC_WARN_INHIBIT_ALL_WARNINGS' }
            file.settings['COMPILER_FLAGS'] = flags.join(' ')
          end
        end
      end
      target.build_configurations.each do |config|
        config.build_settings['IPHONEOS_DEPLOYMENT_TARGET'] = '13.0'
      end

      if ['FirebaseCoreInternal', 'GoogleUtilities'].include?(target.name)
        target.build_configurations.each do |config|
          config.build_settings['DEFINES_MODULE'] = 'YES'
        end
      end
    end
  end
end

Run pod upgrade clean build folder and build again.

I hope it helps!