🐛 Error loading Native Ads! LoadAdError(code: 3, domain: com.google.android.gms.ads, message: No ad config.)

[oliverbytes]

Bug report

I was only able to successfully load a native ad once and I've tried countless times and I'm just getting the error. "LoadAdError(code: 3, domain: com.google.android.gms.ads, message: No ad config.)" or "LoadAdError(code: 1, domain: com.google.android.gms.ads, message: Error building request URL.)"

I've ensured I'm using the correct Test Device ID set in the AdReques() object and using the correct Test Ad Unit ID.

Flutter doctor

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``` ✓] Flutter (Channel stable, 2.0.1, on macOS 11.1 20C69 darwin-x64, locale en-PH) • Flutter version 2.0.1 at /Users/nemoryoliver/fvm/versions/stable • Framework revision c5a4b4029c (14 hours ago), 2021-03-04 09:47:48 -0800 • Engine revision 40441def69 • Dart version 2.12.0 [✓] Android toolchain - develop for Android devices (Android SDK version 30.0.1) • Android SDK at /Users/nemoryoliver/Library/Android/sdk • Platform android-30, build-tools 30.0.1 • ANDROID_HOME = /Users/nemoryoliver/Library/Android/sdk • Java binary at: /Applications/Android Studio.app/Contents/jre/jdk/Contents/Home/bin/java • Java version OpenJDK Runtime Environment (build 1.8.0_242-release-1644-b3-6915495) • All Android licenses accepted. [✓] Xcode - develop for iOS and macOS • Xcode at /Applications/Xcode.app/Contents/Developer • Xcode 12.4, Build version 12D4e • CocoaPods version 1.10.1 [✓] Chrome - develop for the web • Chrome at /Applications/Google Chrome.app/Contents/MacOS/Google Chrome [✓] Android Studio (version 4.1) • Android Studio at /Applications/Android Studio.app/Contents • Flutter plugin can be installed from: 🔨 https://plugins.jetbrains.com/plugin/9212-flutter • Dart plugin can be installed from: 🔨 https://plugins.jetbrains.com/plugin/6351-dart • Java version OpenJDK Runtime Environment (build 1.8.0_242-release-1644-b3-6915495) [✓] VS Code (version 1.53.2) • VS Code at /Applications/Visual Studio Code.app/Contents • Flutter extension version 3.20.0 [✓] Connected device (3 available) • IN2010 (mobile) • 022666eb • android-arm64 • Android 11 (API 30) • macOS (desktop) • macos • darwin-x64 • macOS 11.1 20C69 darwin-x64 • Chrome (web) • chrome • web-javascript • Google Chrome 89.0.4389.72 beta • No issues found! ```

---

Flutter dependencies

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``` Dart SDK 2.12.0 Flutter SDK 2.0.1 app 2.2.0+76 dependencies: - app_settings 4.0.4 [flutter] - appodeal_flutter 0.5.1 [flutter] - background_fetch 0.7.1 [flutter] - badges 1.1.6 [flutter] - bubble_tab_indicator 0.1.4 [flutter] - cached_network_image 2.5.0 [flutter flutter_cache_manager octo_image] - chewie 0.12.2 [cupertino_icons flutter video_player wakelock] - cloud_firestore 0.16.0+1 [flutter meta quiver firebase_core firebase_core_platform_interface cloud_firestore_platform_interface cloud_firestore_web] - connectivity 2.0.2 [flutter meta connectivity_platform_interface connectivity_macos connectivity_for_web] - crypto 2.1.5 [collection convert typed_data] - device_info 1.0.0 [flutter device_info_platform_interface] - dio 3.0.10 [http_parser path] - dio_cookie_manager 1.0.0 [cookie_jar dio] - either_option 1.0.6 [test] - encrypt 4.1.0 [args asn1lib clock collection crypto pointycastle] - ext_storage 1.0.3 [flutter] - file_picker 2.1.6 [flutter flutter_web_plugins flutter_plugin_android_lifecycle plugin_platform_interface] - firebase_analytics 7.0.1 [meta flutter firebase_core firebase_analytics_web firebase_analytics_platform_interface] - firebase_auth 0.20.1 [meta firebase_core firebase_core_platform_interface firebase_auth_platform_interface firebase_auth_web flutter] - firebase_core 0.7.0 [firebase_core_platform_interface flutter quiver meta firebase_core_web] - firebase_crashlytics 0.4.0+1 [flutter stack_trace firebase_core firebase_core_platform_interface firebase_crashlytics_platform_interface] - firebase_database 6.0.0 [flutter firebase_core] - firebase_in_app_messaging 0.3.0+1 [meta flutter firebase_core] - firebase_messaging 8.0.0-dev.15 [meta flutter firebase_core firebase_core_platform_interface firebase_messaging_platform_interface firebase_messaging_web] - firebase_performance 0.5.0+1 [flutter firebase_core] - firebase_remote_config 0.6.0 [flutter firebase_core] - flutter 0.0.0 [characters collection meta typed_data vector_math sky_engine] - flutter_cache_manager 2.1.1 [flutter path_provider uuid http path sqflite pedantic clock file rxdart image] - flutter_email_sender 4.0.0 [flutter] - flutter_facebook_login 3.0.0 [flutter collection] - flutter_icons 1.1.0 [flutter] - flutter_inappwebview 4.0.0+4 [flutter uuid mime] - flutter_linkify 4.1.0 [flutter linkify] - flutter_local_notifications 4.0.1+1 [flutter flutter_local_notifications_platform_interface platform timezone] - flutter_loggy 1.0.2 [flutter loggy rxdart] - flutter_native_admob 2.1.0+3 [flutter] - flutter_rating_bar 3.2.0+1 [flutter] - flutter_screen_lock 1.2.9 [flutter] - flutter_spinkit 4.1.2+1 [flutter] - flutter_twitter_login 1.1.0 [flutter] - flutter_user_agent 1.2.2 [flutter] - geocoding 1.0.5 [flutter geocoding_platform_interface url_launcher] - get 3.25.6 [flutter] - get_storage 1.4.0 [flutter path_provider get] - google_fonts 1.1.2 [flutter http path_provider crypto] - google_mobile_ads 0.11.0+1 [meta flutter] - google_sign_in 4.5.9 [google_sign_in_platform_interface flutter meta google_sign_in_web] - hive 1.4.4+1 [meta crypto] - hive_flutter 0.3.1 [flutter hive path_provider path] - http_parser 3.1.4 [charcode collection source_span string_scanner typed_data] - image_gallery_saver 1.6.8 [flutter] - in_app_review 1.0.4 [flutter in_app_review_platform_interface] - in_app_update 1.1.15 [flutter] - intl 0.16.1 [path] - local_auth 0.6.3+4 [flutter meta intl platform flutter_plugin_android_lifecycle] - location 3.2.4 [flutter location_platform_interface location_web meta] - loggy 1.0.3 [stack_trace] - mediation_test 0.0.2 [flutter] - mopub_flutter 1.2.2+1 [flutter] - native_admob_flutter 0.9.4 [flutter] - package_info 0.4.3+4 [flutter] - path 1.7.0 - path_provider 1.6.27 [flutter path_provider_platform_interface path_provider_macos path_provider_linux path_provider_windows] - path_provider_ex 1.0.1 [flutter] - permission_handler 5.1.0+2 [flutter meta permission_handler_platform_interface] - photo_view 0.10.3 [flutter] - pull_to_refresh 1.6.4 [flutter] - purchases_flutter 2.0.3 [flutter] - random_string 2.1.0 - share 0.6.5+4 [meta mime flutter] - shimmer 1.1.2 [flutter] - simple_animations 2.5.1 [flutter supercharged sa_v1_migration pedantic] - step_progress_indicator 0.2.5+8 [flutter] - supercharged 1.12.0 [supercharged_dart flutter] - timeago 2.0.30 - transparent_image 1.0.0 - tuple 1.0.3 [quiver] - uni_links 0.4.0 [flutter] - unity_ads_plugin 0.1.2 [flutter] - url_launcher 5.7.10 [flutter url_launcher_platform_interface url_launcher_web url_launcher_linux url_launcher_macos url_launcher_windows] - uuid 2.2.2 [crypto convert] - validators 2.0.1 [vin_decoder] - wakelock 0.2.1+1 [flutter meta wakelock_platform_interface wakelock_web] - webview_cookie_manager 1.0.8 [flutter] - webview_flutter 1.0.7 [flutter] - youtube_player_flutter 7.0.0+7 [flutter flutter_inappwebview] dev dependencies: - build_runner 1.11.1 [args async build build_config build_daemon build_resolvers build_runner_core code_builder collection crypto dart_style glob graphs http_multi_server io js logging meta mime path pedantic pool pub_semver pubspec_parse shelf shelf_web_socket stack_trace stream_transform timing watcher web_socket_channel yaml] - flutter_launcher_icons 0.8.1 [image args yaml path] - flutter_native_splash 0.3.0 [yaml image xml] - hive_generator 0.8.2 [build source_gen hive analyzer dartx] transitive dependencies: - _fe_analyzer_shared 12.0.0 [meta] - analyzer 0.40.5 [_fe_analyzer_shared args cli_util collection convert crypto glob meta package_config path pub_semver source_span watcher yaml] - archive 2.0.13 [crypto args path] - args 1.6.0 - asn1lib 0.8.1 - async 2.4.2 [collection] - basic_utils 2.7.0-rc.1 [http logging json_annotation pointycastle convert crypto] - boolean_selector 2.0.0 [source_span string_scanner] - build 1.5.0 [analyzer async convert crypto logging meta path glob] - build_config 0.4.2 [checked_yaml json_annotation meta path pubspec_parse yaml] - build_daemon 2.1.4 [built_collection built_value http_multi_server logging pedantic path pool shelf shelf_web_socket stream_transform watcher web_socket_channel] - build_resolvers 1.4.2 [analyzer build crypto graphs logging meta path package_config pool pub_semver] - build_runner_core 6.0.3 [async build build_config build_resolvers collection convert crypto glob graphs json_annotation logging meta path package_config pedantic pool timing watcher yaml] - built_collection 4.3.2 [collection quiver] - built_value 7.1.0 [built_collection collection fixnum quiver] - characters 1.1.0 - charcode 1.1.3 - checked_yaml 1.0.2 [json_annotation source_span yaml] - cli_util 0.2.0 [path] - clock 1.0.1 [meta] - cloud_firestore_platform_interface 3.0.2 [flutter meta collection firebase_core plugin_platform_interface] - cloud_firestore_web 0.3.0+2 [flutter flutter_web_plugins http_parser meta firebase_core firebase_core_web cloud_firestore_platform_interface js] - code_builder 3.5.0 [built_collection built_value collection matcher meta] - collection 1.15.0 - connectivity_for_web 0.3.1+2 [connectivity_platform_interface flutter_web_plugins flutter] - connectivity_macos 0.1.0+5 [flutter] - connectivity_platform_interface 1.0.6 [flutter meta plugin_platform_interface] - convert 2.1.1 [charcode typed_data] - cookie_jar 1.0.1 - coverage 0.14.1 [args logging package_config path source_maps stack_trace vm_service] - csslib 0.16.2 [source_span] - cupertino_icons 1.0.0 - dart_style 1.3.8 [analyzer args path source_span] - dartx 0.5.0 [collection path crypto characters time meta] - device_info_platform_interface 1.0.1 [flutter meta plugin_platform_interface] - ffi 0.1.3 - file 5.2.1 [intl meta path] - firebase 7.3.2 [http http_parser js] - firebase_analytics_platform_interface 1.0.3 [flutter meta] - firebase_analytics_web 0.1.1 [flutter flutter_web_plugins firebase firebase_analytics_platform_interface meta] - firebase_auth_platform_interface 3.1.0 [flutter meta firebase_core plugin_platform_interface] - firebase_auth_web 0.3.3 [flutter flutter_web_plugins meta http_parser intl firebase_core firebase_core_web firebase_auth_platform_interface js] - firebase_core_platform_interface 3.0.1 [flutter meta plugin_platform_interface quiver] - firebase_core_web 0.2.1+3 [firebase_core_platform_interface flutter flutter_web_plugins meta js] - firebase_crashlytics_platform_interface 1.1.6 [flutter meta collection firebase_core plugin_platform_interface] - firebase_messaging_platform_interface 1.0.0-dev.10 [flutter meta firebase_core plugin_platform_interface] - firebase_messaging_web 0.1.0-dev.6 [flutter flutter_web_plugins meta firebase_core firebase_core_web firebase_messaging_platform_interface js service_worker] - fixnum 0.10.11 - flutter_blurhash 0.5.0 [flutter meta] - flutter_local_notifications_platform_interface 2.0.0+1 [flutter plugin_platform_interface] - flutter_plugin_android_lifecycle 1.0.11 [flutter] - flutter_web_plugins 0.0.0 [flutter js characters collection meta typed_data vector_math] - geocoding_platform_interface 1.0.1+1 [flutter meta plugin_platform_interface] - glob 1.2.0 [async collection node_io path pedantic string_scanner] - google_sign_in_platform_interface 1.1.2 [flutter meta quiver] - google_sign_in_web 0.9.2 [google_sign_in_platform_interface flutter flutter_web_plugins meta js] - graphs 0.2.0 - html 0.14.0+4 [csslib source_span] - http 0.12.2 [http_parser path pedantic] - http_multi_server 2.2.0 [async] - image 2.1.19 [archive xml meta] - import_js_library 1.0.2 [flutter html flutter_web_plugins js] - in_app_review_platform_interface 1.0.5 [flutter url_launcher plugin_platform_interface platform] - io 0.3.4 [charcode meta path string_scanner] - js 0.6.3 - json_annotation 3.1.0 - linkify 3.0.0 - location_platform_interface 1.1.0 [flutter meta plugin_platform_interface] - location_web 1.0.1 [flutter flutter_web_plugins http_parser js location_platform_interface meta] - logging 0.11.4 - matcher 0.12.9 [stack_trace] - meta 1.3.0 - mime 0.9.7 - node_interop 1.1.1 [js] - node_io 1.1.1 [node_interop path] - node_preamble 1.4.12 - octo_image 0.3.0 [flutter flutter_blurhash] - package_config 1.9.3 [path charcode] - path_provider_linux 0.0.1+2 [path xdg_directories path_provider_platform_interface flutter] - path_provider_macos 0.0.4+4 [flutter] - path_provider_platform_interface 1.0.3 [flutter meta platform plugin_platform_interface] - path_provider_windows 0.0.4+1 [path_provider_platform_interface meta path flutter ffi win32] - pedantic 1.9.2 [meta] - permission_handler_platform_interface 2.0.2 [flutter meta plugin_platform_interface] - petitparser 3.1.0 [meta] - platform 2.2.1 - plugin_platform_interface 1.0.3 [meta] - pointycastle 2.0.0 - pool 1.4.0 [async stack_trace] - process 3.0.13 [file intl meta path platform] - pub_semver 1.4.4 [collection] - pubspec_parse 0.1.5 [checked_yaml json_annotation pub_semver yaml] - quiver 2.1.4+1 [matcher meta] - rxdart 0.24.1 - sa_v1_migration 1.1.2 [flutter] - service_worker 0.2.4 [js] - shelf 0.7.9 [async collection http_parser path stack_trace stream_channel] - shelf_packages_handler 2.0.0 [path shelf shelf_static] - shelf_static 0.2.8 [convert http_parser mime path shelf] - shelf_web_socket 0.2.3 [shelf web_socket_channel stream_channel] - sky_engine 0.0.99 - source_gen 0.9.8 [analyzer async build dart_style glob meta path pedantic source_span] - source_map_stack_trace 2.0.0 [path stack_trace source_maps] - source_maps 0.10.9 [source_span] - source_span 1.7.0 [charcode collection meta path term_glyph] - sqflite 1.3.2+2 [flutter sqflite_common path] - sqflite_common 1.0.3 [synchronized path meta] - stack_trace 1.9.5 [path] - stream_channel 2.0.0 [async] - stream_transform 1.2.0 - string_scanner 1.0.5 [charcode meta source_span] - supercharged_dart 1.4.0 - synchronized 2.2.0+2 - term_glyph 1.1.0 - test 1.15.4 [analyzer async boolean_selector coverage http http_multi_server io js node_preamble package_config path pedantic pool shelf shelf_packages_handler shelf_static shelf_web_socket source_span stack_trace stream_channel typed_data web_socket_channel webkit_inspection_protocol yaml test_api test_core] - test_api 0.2.18 [async boolean_selector collection meta path source_span stack_trace stream_channel string_scanner term_glyph matcher] - test_core 0.3.11+1 [analyzer async args boolean_selector collection coverage glob io meta package_config path pedantic pool source_map_stack_trace source_maps source_span stack_trace stream_channel vm_service yaml matcher test_api] - time 1.3.0 - timezone 0.6.1 [path] - timing 0.1.1+2 [json_annotation] - typed_data 1.3.0 [collection] - url_launcher_linux 0.0.1+3 [flutter] - url_launcher_macos 0.0.1+8 [flutter] - url_launcher_platform_interface 1.0.9 [flutter meta plugin_platform_interface] - url_launcher_web 0.1.5 [url_launcher_platform_interface flutter flutter_web_plugins meta] - url_launcher_windows 0.0.1+1 [flutter] - vector_math 2.1.0 - video_player 1.0.0 [meta video_player_platform_interface video_player_web flutter] - video_player_platform_interface 2.2.0 [flutter meta] - video_player_web 0.1.4 [flutter flutter_web_plugins meta video_player_platform_interface] - vin_decoder 0.1.2 [meta basic_utils http random_string] - vm_service 4.2.0 [meta] - wakelock_platform_interface 0.1.0+1 [flutter meta] - wakelock_web 0.1.0+3 [flutter flutter_web_plugins import_js_library js wakelock_platform_interface] - watcher 0.9.7+15 [async path pedantic] - web_socket_channel 1.1.0 [async crypto stream_channel] - webkit_inspection_protocol 0.7.3 [logging] - win32 1.7.3 [ffi] - xdg_directories 0.1.2 [meta path process] - xml 4.5.1 [collection convert meta petitparser] - yaml 2.2.1 [charcode collection string_scanner source_span] ```

---

Code

Followed from: Code Labs

final _listener = AdListener(
      onAdLoaded: (Ad ad) async {
        loggy.info('native loaded');

        adWidget.value = Container(
          alignment: Alignment.center,
          child: AdWidget(ad: _nativeAd),
          width: 720,
          height: 100,
        );
      },
      onAdClosed: (Ad ad) {
        loggy.info('native closed');
      },
      onAdFailedToLoad: (Ad ad, LoadAdError error) {
        loggy.error('native failed: $error');
        _nativeAd?.dispose();
      },
      onAdOpened: (Ad ad) {
        loggy.info('native opened');
      },
      onAppEvent: (Ad ad, String x, String y) {
        loggy.info('native event: $x, $y');
      },
      onNativeAdClicked: (Ad ad) {
        loggy.info('native clicked');
      },
      onNativeAdImpression: (Ad ad) {
        loggy.info('native impression');
      },
    );

    _nativeAd = NativeAd(
      adUnitId: 'ca-app-pub-3940256099942544/2247696110',
      factoryId: 'listTile',
      request: AdmobController.adRequest, // includes test device id, keywords, content url
      listener: _listener,
    )..load();

MainActivity.kt

package com.nemorystudios

import io.flutter.embedding.android.FlutterFragmentActivity
import io.flutter.embedding.engine.FlutterEngine
import io.flutter.plugins.googlemobileads.GoogleMobileAdsPlugin

// FlutterFragmentActivity required by local_auth package
class MainActivity: FlutterFragmentActivity() {
    override fun configureFlutterEngine(flutterEngine: FlutterEngine) {
        super.configureFlutterEngine(flutterEngine)
        GoogleMobileAdsPlugin.registerNativeAdFactory(flutterEngine, "listTile", ListTileNativeAdFactory(this) as GoogleMobileAdsPlugin.NativeAdFactory)
    }

    override fun cleanUpFlutterEngine(flutterEngine: FlutterEngine) {
        GoogleMobileAdsPlugin.unregisterNativeAdFactory(flutterEngine, "listTile")
    }
}

ListTileNativeAdFactory.kt

package com.nemorystudios

import android.content.Context
import android.view.LayoutInflater
import android.view.View
import android.widget.ImageView
import android.widget.TextView
import com.google.android.gms.ads.formats.UnifiedNativeAd
import com.google.android.gms.ads.formats.UnifiedNativeAdView
import io.flutter.plugins.googlemobileads.GoogleMobileAdsPlugin.NativeAdFactory

internal class ListTileNativeAdFactory(private val context: Context) : NativeAdFactory {
    override fun createNativeAd(
            nativeAd: UnifiedNativeAd, customOptions: Map<String, Any>?): UnifiedNativeAdView {
        val nativeAdView = LayoutInflater.from(context)
                .inflate(R.layout.list_tile_native_ad, null) as UnifiedNativeAdView
        nativeAdView.setNativeAd(nativeAd)
        val attributionViewSmall = nativeAdView
                .findViewById<TextView>(R.id.tv_list_tile_native_ad_attribution_small)
        val attributionViewLarge = nativeAdView
                .findViewById<TextView>(R.id.tv_list_tile_native_ad_attribution_large)
        val iconView = nativeAdView.findViewById<ImageView>(R.id.iv_list_tile_native_ad_icon)
        val icon = nativeAd.icon

        if (icon != null) {
            attributionViewSmall.visibility = View.VISIBLE
            attributionViewLarge.visibility = View.INVISIBLE
            iconView.setImageDrawable(icon.drawable)
        } else {
            attributionViewSmall.visibility = View.INVISIBLE
            attributionViewLarge.visibility = View.VISIBLE
        }

        nativeAdView.iconView = iconView
        val headlineView = nativeAdView.findViewById<TextView>(R.id.tv_list_tile_native_ad_headline)
        headlineView.text = nativeAd.headline
        nativeAdView.headlineView = headlineView
        val bodyView = nativeAdView.findViewById<TextView>(R.id.tv_list_tile_native_ad_body)
        bodyView.text = nativeAd.body
        bodyView.visibility = if (nativeAd.body != null) View.VISIBLE else View.INVISIBLE
        nativeAdView.bodyView = bodyView
        return nativeAdView
    }
}

[cranst0n]

Getting a simliar error using banner ads. LoadAdError(code: 3, domain: com.google.android.gms.ads, message: No ad config.)

Using Flutter stable 2.0.1 and google_mobile_ads: 0.11.0+2

[houdayec]

@nemoryoliver @cranst0n Did you manage this issue?

[diegocom]

@houdayec In my case the problem was the test ad unit code. I tried with the production one and everything works fine.

[cranst0n]

My app is relatively new and has had it's ad serving limited so that may be the real culprit in my case. Will likely have to wait a few week until the limit is lifted by Google.

[oliverbytes]

Issue is not present anymore with the latest SDK.

[theshivamlko]

HI this issue is still there, happens when using google_mobile_ads and local_auth package together Error comes when FlutterFragmentActivity is used for local_auth java.nio.BufferUnderflowException

[danijorda1]

HI this issue is still there, happens when using google_mobile_ads and local_auth package together Error comes when FlutterFragmentActivity is used for local_auth java.nio.BufferUnderflowException

Agree, google_mobile_ads is not working when using FlutterFragmentActivity in MainActivity. Anyone was able to make it work?