Firebase Admob广告在一个月后仍未显示，广告加载失败

我正在尝试在我的应用程序中实现Firebase Admob，并尝试在使用测试ID时使用横幅广告，但在使用真正的应用程序ID时不使用横幅广告。我等了大约一个月，仍然没有广告。 我看的文件都很好，据他们说还是没有运气 错误日志显示ad未能加载3 不知道是什么原因造成的。 谢谢

类ImagePath扩展StatefulWidget{
最终字符串imgPath；
ImagePath（this.imgPath）；
@凌驾
_ImagePathState createState（）=>\u ImagePathState（）；
}
类_ImagePathState扩展状态{
字符串本地路径；
静态常量MobileAdTargetingInfo targetingInfo=MobileAdTargetingInfo(
testDevices:testDevice！=null？[testDevice]：null，
非人格化爸爸：没错，
关键词：[“网站”、“游戏”]，
);
班纳拉德；
BannerAd createBannerAd（）{
返回横幅(
adUnitId：“广告-身份-这里”，
大小：AdSize.banner，
targetingInfo:targetingInfo，
侦听器：（MobileAdEvent事件）{
打印（“BannerAd$事件”）；
});
}
@凌驾
void initState（）{
FirebaseAdMob.instance
.初始化（appId:“APP-ID-HERE”）；
bannerAd=createBannerAd（）
…加载（）
…显示（anchorType:anchorType.bottom）；
super.initState（）；
}
@凌驾
无效处置（）{
bannerAd？.dispose（）；
super.dispose（）；
}
未来获取本地路径异步{
最终结果=wait Permission.storage.request（）；
如果（结果==PermissionStatus.grated）{
最终本地路径=
（等待findLocalPath（））+Platform.pathSeparator+“下载”；
final savedDir=目录（localPath）；
bool hasExisted=wait savedDir.exists（）；
如果（！已存在）{
savedDir.create（）；
}
返回localPath；
}否则
返回null；
}
Future findLocalPath（）异步{
最终目录=Platform.isAndroid
？等待getExternalStorageDirectory（）
：等待getApplicationDocumentsDirectory（）；
返回directory.path；
}
@凌驾
小部件构建（构建上下文）{
返回脚手架(
appBar:appBar(
背景颜色：bgColor，
领先：IconButton(
图标：图标（Icons.close），
onPressed:（）=>Navigator.of（context.pop（），
颜色：颜色，白色，
),
行动：[
图标按钮(
颜色：颜色，白色，
图标：图标（Icons.file_下载），
onPressed:（）异步=>下载任务(
taskId:wait downloader.enqueue(
url:widget.imgPath，
savedDir：等待localpath，
showNotification:对，
openFileFromNotification:true）））
],
),
正文：SizedBox.expand(
子：容器(
子：堆栈(
儿童：[
对齐(
对齐：对齐.center，
孩子：英雄(
标记：widget.imgPath，子项：Image.network（widget.imgPath）），
),
],
),
),
),
背景颜色：bgColor，
);
}
}

错误日志-

             D/ActivityThread(29222): holder:android.app.IActivityManager$ContentProviderHolder@c4e7070, holder.provider:android.content.ContentProviderProxy@a482fe9
            D/DynamitePackage(29222): Instantiating com.google.android.gms.ads.ChimeraMobileAdsSettingManagerCreatorImpl
            I/WebViewFactory(29222): Loading com.google.android.webview version 86.0.4240.110 (code 424011000)
            W/ResourceType(29222): Found multiple library tables, ignoring...
            I/System  (29222): FinalizerDaemon: finalize objects = 289
            D/WebView (29222): WebView<init>
            I/cr_LibraryLoader(29222): Loaded native library version number "86.0.4240.110"
            I/cr_CachingUmaRecorder(29222): Flushed 5 samples from 5 histograms.
            E/chromium(29222): [ERROR:filesystem_posix.cc(62)] mkdir /data/user/0/sagarrawatuk.fotoApp/cache/WebView/Crashpad: No such file or directory (2)
            D/ConnectivityManager.CallbackHandler(29222): CM callback handler got msg 524290
            D/WebView (29222): addJavascriptInterface=googleAdsJsInterface
            D/WebView (29222): removeJavascriptInterface=accessibility
            D/WebView (29222): removeJavascriptInterface=accessibilityTraversal
            D/WebView (29222): loadUrl=https://googleads.g.doubleclick.net/mads/static/mad/sdk/native/production/sdk-core-v40-impl.html
            W/cr_media(29222): Requires BLUETOOTH permission
            V/SettingsInterface(29222): invalidate [secure]: current 2 != cached 0
            E/libEGL  (29222): validate_display:255 error 3008 (EGL_BAD_DISPLAY)
            D/ActivityThread(29222): holder:android.app.IActivityManager$ContentProviderHolder@90636e7, holder.provider:android.content.ContentProviderProxy@a09f294
            D/DynamitePackage(29222): Instantiating com.google.android.gms.ads.ChimeraAdManagerCreatorImpl
            D/SettingsInterface(29222):  from settings cache , name = android_id , value = e6623267e10d401e
            I/Ads     (29222): Use RequestConfiguration.Builder().setTestDeviceIds(Arrays.asList("0D97118CC9A4746D5FDA6A253D5479F1") to get test ads on this device.
            D/MPlugin (29222): createInstance(): Begin = 485050486
            D/MPlugin (29222): create Instance (two parameters) with : com.mediatek.common.telephony.IOnlyOwnerSimSupport
            D/MPlugin (29222): Clazz exists on mapping table : false
            E/MPlugin (29222): Unsupported class: com.mediatek.common.telephony.IOnlyOwnerSimSupport
            D/MPlugin (29222): createInstance(): End = 485050486
            I/DynamiteModule(29222): Considering local module com.google.android.gms.ads.dynamite:0 and remote module com.google.android.gms.ads.dynamite:203404601
            I/DynamiteModule(29222): Selected remote version of com.google.android.gms.ads.dynamite, version >= 203404601
            D/SettingsInterface(29222):  from settings cache , name = accessibility_captioning_enabled , value = 0
            D/SettingsInterface(29222):  from settings cache , name = accessibility_captioning_font_scale , value = null
            D/SettingsInterface(29222):  from settings cache , name = accessibility_captioning_locale , value = null
            D/SettingsInterface(29222):  from settings cache , name = accessibility_captioning_preset , value = null
            D/libc-netbsd(29222): [getaddrinfo]: hostname=googleads.g.doubleclick.net; servname=(null); netid=0; mark=0
            D/libc-netbsd(29222): [getaddrinfo]: ai_addrlen=0; ai_canonname=(null); ai_flags=1024; ai_family=0
            W/Ads     (29222): Not retrying to fetch app settings
            D/libc-netbsd(29222): getaddrinfo: googleads.g.doubleclick.net get result from proxy gai_error = 0
            D/SettingsInterface(29222):  from settings cache , name = accessibility_captioning_enabled , value = 0
            D/SettingsInterface(29222):  from settings cache , name = accessibility_captioning_font_scale , value = null
            D/SettingsInterface(29222):  from settings cache , name = accessibility_captioning_locale , value = null
            D/SettingsInterface(29222):  from settings cache , name = accessibility_captioning_preset , value = null
            D/libc-netbsd(29222): [getaddrinfo]: hostname=googleads.g.doubleclick.net; servname=(null); netid=0; mark=0
            D/libc-netbsd(29222): [getaddrinfo]: ai_addrlen=0; ai_canonname=(null); ai_flags=1024; ai_family=0
            W/Ads     (29222): Not retrying to fetch app settings
            D/libc-netbsd(29222): getaddrinfo: googleads.g.doubleclick.net get result from proxy gai_error = 0
            D/OpenSSLLib(29222): OpensslErr:Module:12(116:176); file:external/boringssl/src/crypto/asn1/asn1_lib.c ;Line:186;Function:ASN1_get_object
            D/OpenSSLLib(29222): OpensslErr:Module:12(116:176); file:external/boringssl/src/crypto/asn1/asn1_lib.c ;Line:186;Function:ASN1_get_object
            W/flutter (29222): onAdFailedToLoad: 3
            I/Ads     (29222): Ad failed to load : 3
            I/flutter (29222): BannerAd MobileAdEvent.failedToLoad
            D/SQLiteDatabase(29222): beginTransaction()
            D/SQLiteDatabase(29222): endTransaction()
            D/SQLiteDatabase(29222): beginTransaction()
            D/SQLiteDatabase(29222): endTransaction()
            D/WebView (29222): evaluateJavascript=(function(){})()
            D/WebView (29222): evaluateJavascript=google.afma.config.fetchAppSettings({"id":"1728bed4-cfbf-449f-a186-a71cd6e27ce4","args":{"app_id":"APP_ID","is_init":true,"pn":"sagarrawatuk.fotoApp"}});

D/ActivityThread（29222）：持有者：android.app.IActivityManager$ContentProviderHolder@c4e7070，holder.provider:android.content。ContentProviderProxy@a482fe9
D/DynamicPackage（29222）：实例化com.google.android.gms.ads.ChimeraMobileAdsSettingManagerCreatorImpl
I/WebViewFactory（29222）：加载com.google.android.webview版本86.0.4240.110（代码424011000）
W/ResourceType（29222）：找到多个库表，忽略。。。
I/System（29222）：finalizerDamon:finalize objects=289
D/WebView（29222）：WebView
I/cr_LibraryLoader（29222）：加载的本机库版本号“86.0.4240.110”
I/cr_CachingUmaRecorder（29222）：从5个直方图中冲洗5个样本。
E/chromium（29222）：[错误：filesystem_posix.cc（62）]mkdir/data/user/0/sagarrawatuk.fotoApp/cache/WebView/Crashpad:没有这样的文件或目录（2）
D/ConnectivityManager.CallbackHandler（29222）：CM回调处理程序得到消息524290
D/WebView（29222）：addJavascriptInterface=googleAdsJsInterface
D/WebView（29222）：removeJavascriptInterface=accessibility
D/WebView（29222）：removeJavascriptInterface=accessibilityTraversal
D/WebView（29222）：加载URL=https://googleads.g.doubleclick.net/mads/static/mad/sdk/native/production/sdk-core-v40-impl.html
W/cr_媒体（29222）：需要蓝牙许可
V/设置接口（29222）：无效[安全]：当前2！=缓存的0
E/libEGL（29222）：验证显示：255错误3008（EGL\u错误显示）
D/ActivityThread（29222）：持有者：android.app.IActivityManager$ContentProviderHolder@90636e7，holder.provider:android.content。ContentProviderProxy@a09f294
D/DynamicPackage（29222）：实例化com.google.android.gms.ads.ChimeraAdManagerCreatorImpl
D/SettingsInterface（29222）：从设置缓存，名称=android\u id，值=e6623267e10d401e
I/Ads（29222）：使用RequestConfiguration.Builder（）.SetTestDeviceID（Arrays.asList（“0D97118CC9A4746D5FDA6A253D5479F1”）获取此设备上的测试Ads。
D/MPlugin（29222）：createInstance（）：Begin=485050486
             D/ActivityThread(29222): holder:android.app.IActivityManager$ContentProviderHolder@c4e7070, holder.provider:android.content.ContentProviderProxy@a482fe9
            D/DynamitePackage(29222): Instantiating com.google.android.gms.ads.ChimeraMobileAdsSettingManagerCreatorImpl
            I/WebViewFactory(29222): Loading com.google.android.webview version 86.0.4240.110 (code 424011000)
            W/ResourceType(29222): Found multiple library tables, ignoring...
            I/System  (29222): FinalizerDaemon: finalize objects = 289
            D/WebView (29222): WebView<init>
            I/cr_LibraryLoader(29222): Loaded native library version number "86.0.4240.110"
            I/cr_CachingUmaRecorder(29222): Flushed 5 samples from 5 histograms.
            E/chromium(29222): [ERROR:filesystem_posix.cc(62)] mkdir /data/user/0/sagarrawatuk.fotoApp/cache/WebView/Crashpad: No such file or directory (2)
            D/ConnectivityManager.CallbackHandler(29222): CM callback handler got msg 524290
            D/WebView (29222): addJavascriptInterface=googleAdsJsInterface
            D/WebView (29222): removeJavascriptInterface=accessibility
            D/WebView (29222): removeJavascriptInterface=accessibilityTraversal
            D/WebView (29222): loadUrl=https://googleads.g.doubleclick.net/mads/static/mad/sdk/native/production/sdk-core-v40-impl.html
            W/cr_media(29222): Requires BLUETOOTH permission
            V/SettingsInterface(29222): invalidate [secure]: current 2 != cached 0
            E/libEGL  (29222): validate_display:255 error 3008 (EGL_BAD_DISPLAY)
            D/ActivityThread(29222): holder:android.app.IActivityManager$ContentProviderHolder@90636e7, holder.provider:android.content.ContentProviderProxy@a09f294
            D/DynamitePackage(29222): Instantiating com.google.android.gms.ads.ChimeraAdManagerCreatorImpl
            D/SettingsInterface(29222):  from settings cache , name = android_id , value = e6623267e10d401e
            I/Ads     (29222): Use RequestConfiguration.Builder().setTestDeviceIds(Arrays.asList("0D97118CC9A4746D5FDA6A253D5479F1") to get test ads on this device.
            D/MPlugin (29222): createInstance(): Begin = 485050486
            D/MPlugin (29222): create Instance (two parameters) with : com.mediatek.common.telephony.IOnlyOwnerSimSupport
            D/MPlugin (29222): Clazz exists on mapping table : false
            E/MPlugin (29222): Unsupported class: com.mediatek.common.telephony.IOnlyOwnerSimSupport
            D/MPlugin (29222): createInstance(): End = 485050486
            I/DynamiteModule(29222): Considering local module com.google.android.gms.ads.dynamite:0 and remote module com.google.android.gms.ads.dynamite:203404601
            I/DynamiteModule(29222): Selected remote version of com.google.android.gms.ads.dynamite, version >= 203404601
            D/SettingsInterface(29222):  from settings cache , name = accessibility_captioning_enabled , value = 0
            D/SettingsInterface(29222):  from settings cache , name = accessibility_captioning_font_scale , value = null
            D/SettingsInterface(29222):  from settings cache , name = accessibility_captioning_locale , value = null
            D/SettingsInterface(29222):  from settings cache , name = accessibility_captioning_preset , value = null
            D/libc-netbsd(29222): [getaddrinfo]: hostname=googleads.g.doubleclick.net; servname=(null); netid=0; mark=0
            D/libc-netbsd(29222): [getaddrinfo]: ai_addrlen=0; ai_canonname=(null); ai_flags=1024; ai_family=0
            W/Ads     (29222): Not retrying to fetch app settings
            D/libc-netbsd(29222): getaddrinfo: googleads.g.doubleclick.net get result from proxy gai_error = 0
            D/SettingsInterface(29222):  from settings cache , name = accessibility_captioning_enabled , value = 0
            D/SettingsInterface(29222):  from settings cache , name = accessibility_captioning_font_scale , value = null
            D/SettingsInterface(29222):  from settings cache , name = accessibility_captioning_locale , value = null
            D/SettingsInterface(29222):  from settings cache , name = accessibility_captioning_preset , value = null
            D/libc-netbsd(29222): [getaddrinfo]: hostname=googleads.g.doubleclick.net; servname=(null); netid=0; mark=0
            D/libc-netbsd(29222): [getaddrinfo]: ai_addrlen=0; ai_canonname=(null); ai_flags=1024; ai_family=0
            W/Ads     (29222): Not retrying to fetch app settings
            D/libc-netbsd(29222): getaddrinfo: googleads.g.doubleclick.net get result from proxy gai_error = 0
            D/OpenSSLLib(29222): OpensslErr:Module:12(116:176); file:external/boringssl/src/crypto/asn1/asn1_lib.c ;Line:186;Function:ASN1_get_object
            D/OpenSSLLib(29222): OpensslErr:Module:12(116:176); file:external/boringssl/src/crypto/asn1/asn1_lib.c ;Line:186;Function:ASN1_get_object
            W/flutter (29222): onAdFailedToLoad: 3
            I/Ads     (29222): Ad failed to load : 3
            I/flutter (29222): BannerAd MobileAdEvent.failedToLoad
            D/SQLiteDatabase(29222): beginTransaction()
            D/SQLiteDatabase(29222): endTransaction()
            D/SQLiteDatabase(29222): beginTransaction()
            D/SQLiteDatabase(29222): endTransaction()
            D/WebView (29222): evaluateJavascript=(function(){})()
            D/WebView (29222): evaluateJavascript=google.afma.config.fetchAppSettings({"id":"1728bed4-cfbf-449f-a186-a71cd6e27ce4","args":{"app_id":"APP_ID","is_init":true,"pn":"sagarrawatuk.fotoApp"}});