eas build for ios error: The following Swift pods cannot yet be integrated as static libraries:

Question

I am using eas build for my expo-based react native app. I am unable to build for ios and keep getting the error during Install pods with the following error log:

106 [!] The following Swift pods cannot yet be integrated as static libraries: 107 The Swift pod FirebaseCoreInternal depends upon GoogleUtilities, 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. 108 Error: Unknown error. See logs for more information.

I have searched many stackoverflow related questions which I have used in editing the Podfile at node_modules/react-native/template/ios/Podfile. An excerpt of the Podfile is shown below:

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

# added only these 5 lines to the Podfile
use_frameworks! :linkage => :static
pod 'Firebase', :modular_headers => true
pod 'FirebaseCoreInternal', :modular_headers => true
pod 'GoogleUtilities', :modular_headers => true
use_modular_headers!


target 'HelloWorld' do
  config = use_native_modules!


  # Flags change depending on the env values.
  flags = get_default_flags()
  
  ...

Questions:

1. Are the added 5 lines in the appropriate place in the code? I have tried adding them just below the

2. Do I have to edit code elsewhere apart from the Podfile? If yes, where and what code.

Been battling this for up to 2 weeks now. Any help would be most welcome.

Thanks

Answer 1

[
    "expo-build-properties",
    {
      "ios" :{
        "deploymentTarget" : "13.4",
        "useFrameworks" : "static"
      }
    }
  ]

I added this to my app.json. I got the deploymentTarget value from my podfile in ios/podfile From here-->

platform :ios, podfile_properties['ios.deploymentTarget'] || '13.4'

And then I ran eas build --platform ios and the build the just passed.

Answer 2

Searched and searched, and mixed and matched, and then trial and error. The following has worked for me.

In node_modules/react-native/template/ios/Podfile, i changed the Podfile to 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, '13.0'
install! 'cocoapods', :deterministic_uuids => false

target 'HelloWorld' 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],
    # Hermes is now enabled by default. Disable by setting this flag to false.
    # Upcoming versions of React Native may rely on get_default_flags(), but
    # we make it explicit here to aid in the React Native upgrade process.
    # :hermes_enabled => true,
    :hermes_enabled => flags[:hermes_enabled],
    :fabric_enabled => flags[:fabric_enabled],
    # Enables Flipper.
    #
    # Note that if you have use_frameworks! enabled, Flipper will not work and
    # you should disable the next line.
    # :flipper_configuration => FlipperConfiguration.enabled,
    # An absolute path to your application root.
    :app_path => "#{Pod::Config.instance.installation_root}/.."
  )

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

  use_flipper!()

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

Then also added plugins to my app.config.js (similarly if you are using app.json).

module.exports = {
  expo: {
    name: "appName",
    slug: "appName",
    scheme: "appName",
    version: "1.0.0",
    orientation: "portrait",
    icon: "./assets/icon_1.png",
    userInterfaceStyle: "light",
    splash: {
      image: "./assets/entry_page.png",
      resizeMode: "contain",
      backgroundColor: "#ffffff"
    },
    updates: {
      fallbackToCacheTimeout: 0
    },
    assetBundlePatterns: [
      "**/*"
    ],
    ios: {
      supportsTablet: true,
      bundleIdentifier: "com.myaooo.appName"
    },
    android: {
      adaptiveIcon: {
        foregroundImage: "./assets/icon_1.png",
        backgroundColor: "#FFFFFF"
      },
      package: "com.myaooo.appName",
      versionCode: 5,
      config: {
        googleMaps: {
          apiKey: process.env.PLACES_API_KEY
        }
      }
    },
    web: {
      favicon: "./assets/favicon.png"
    },
    extra: {
      eas: {
        placesApiKey: process.env.PLACES_API_KEY,
        youtTubeApiKey: process.env.YOUTUBE_API_KEY,
        webApiKey: process.env.WEB_API_KEY,
        firebaseApiKey: process.env.apiKey,
        expoGoogleClientId: process.env.EXPO_GO_GOOGLE_CONSOLE_client_id,
        expoAndroidId: process.env.EXPO_GO_GOOGLE_CONSOLE_androidClientId,
        expoIosId: process.env.EXPO_GO_GOOGLE_CONSOLE_iosClientId,
        clientID: process.env.WEB_clientId,
        expoGoogleClientSecret: process.env.EXPO_GO_GOOGLE_CONSOLE_client_secret
      }
    },
    plugins: [
      [
        "expo-build-properties",
        {
        android: { 
          compileSdkVersion:31,
          targetSdkVersion:31,
          buildToolsVersion:"31.0.0"
          },
        ios: {
          deploymentTarget:"13.0",
          useFrameworks: "static"
          }
        }
      ]
    ]
  }
}

In essence you have to make modifications on the podfile (add the modular headers) and also on the app.json / app.config.js (add the plugins) files.