Swift pods cannot yet be integrated as static libraries FirebaseCoreInternal-library

I am building an app by Flutter. I got this error message when doing "pod install" or "pod install --repo-update" or "pod update" and the pod install failed and stopped.

The error message:

[!] The following Swift pods cannot yet be integrated as staticlibraries:

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

My Podfile:

platform :ios, '11.0'...target 'Runner' do  use_frameworks!  use_modular_headers!  flutter_install_all_ios_pods File.dirname(File.realpath(__FILE__))end...