当我在 Sketchware 中选择 SDK 30 时，广告未显示

如何解决当我在 Sketchware 中选择 SDK 30 时，广告未显示

我使用的是 Sketchware pro6。 3.0 Fix1 应用程序。当我使用 SDK 29 广告在我的应用程序中正确显示时。但是，当我将 SDK 更改为 30 个未显示的广告时，并且在打开应用程序时出现错误。错误是：

java.lang.NoClassDefFoundError: Failed resolution of: Lcom/google/android/gms/tasks/Tasks;
at com.google.android.gms.internal.ads.zzdsy.zza(com.google.android.gms:play-services-gass@@19.7.0:4)
at com.google.android.gms.ads.internal.zzf.<init>(com.google.android.gms:play-services-ads@@19.7.0:11)
at com.google.android.gms.internal.ads.zzbgb.zzaey(com.google.android.gms:play-services-ads@@19.7.0:10)
at com.google.android.gms.internal.ads.zzbgg.get(com.google.android.gms:play-services-ads@@19.7.0:6)
at com.google.android.gms.internal.ads.zzeqc.get(com.google.android.gms:play-services-ads@@19.7.0:10)
at com.google.android.gms.internal.ads.zzcml.get(com.google.android.gms:play-services-ads@@19.7.0:8)
at com.google.android.gms.internal.ads.zzeqc.get(com.google.android.gms:play-services-ads@@19.7.0:10)
at com.google.android.gms.internal.ads.zzdaw.get(com.google.android.gms:play-services-ads@@19.7.0:7)
at com.google.android.gms.internal.ads.zzeqk.get(com.google.android.gms:play-services-ads@@19.7.0:17)
at com.google.android.gms.internal.ads.zzdfm.get(com.google.android.gms:play-services-ads@@19.7.0:8)
at com.google.android.gms.internal.ads.zzbqw.get(com.google.android.gms:play-services-ads@@19.7.0:15)
at com.google.android.gms.internal.ads.zzcqj.get(com.google.android.gms:play-services-ads@@19.7.0:9)
at com.google.android.gms.internal.ads.zzcqc.get(com.google.android.gms:play-services-ads@@19.7.0:6)
at com.google.android.gms.internal.ads.zzeqc.get(com.google.android.gms:play-services-ads@@19.7.0:10)
at com.google.android.gms.internal.ads.zzcps.get(com.google.android.gms:play-services-ads@@19.7.0:7)
at com.google.android.gms.internal.ads.zzeqc.get(com.google.android.gms:play-services-ads@@19.7.0:10)
at com.google.android.gms.internal.ads.zzeqk.get(com.google.android.gms:play-services-ads@@19.7.0:17)
at com.google.android.gms.internal.ads.zzbwk.get(com.google.android.gms:play-services-ads@@19.7.0:7)
at com.google.android.gms.internal.ads.zzeqc.get(com.google.android.gms:play-services-ads@@19.7.0:10)
at com.google.android.gms.internal.ads.zzbhp.zzagj(com.google.android.gms:play-services-ads@@19.7.0:235)
at com.google.android.gms.internal.ads.zzdje.zza(com.google.android.gms:play-services-ads@@19.7.0:71)
at com.google.android.gms.internal.ads.zzcxw.zzg(com.google.android.gms:play-services-ads@@19.7.0:26)
at com.google.android.gms.internal.ads.zzcxw.zza(com.google.android.gms:play-services-ads@@19.7.0:13)
at com.google.android.gms.internal.ads.zzzm.zza(com.google.android.gms:play-services-ads-lite@@19.7.0:123)
at com.google.android.gms.ads.BaseAdView.loadAd(com.google.android.gms:play-services-ads-lite@@19.7.0:15)
at com.google.android.gms.ads.AdView.loadAd(com.google.android.gms:play-services-ads-lite@@19.7.0:20)
at com.RadhaKrishnaHDWallpaper.MainActivity.initializeLogic(MainActivity.java:266)
at com.RadhaKrishnaHDWallpaper.MainActivity.onCreate(MainActivity.java:102)
at android.app.Activity.performCreate(Activity.java:8000)
at android.app.Activity.performCreate(Activity.java:7984)
at android.app.Instrumentation.callActivityOnCreate(Instrumentation.java:1309)
at android.app.ActivityThread.performlaunchActivity(ActivityThread.java:3404)
at android.app.ActivityThread.handleLaunchActivity(ActivityThread.java:3595)
at android.app.servertransaction.LaunchActivityItem.execute(LaunchActivityItem.java:85)
at android.app.servertransaction.TransactionExecutor.executeCallbacks(TransactionExecutor.java:135)
at android.app.servertransaction.TransactionExecutor.execute(TransactionExecutor.java:95)
at android.app.ActivityThread$H.handleMessage(ActivityThread.java:2066)
at android.os.Handler.dispatchMessage(Handler.java:106)
at android.os.Looper.loop(Looper.java:223)
at android.app.ActivityThread.main(ActivityThread.java:7661)
at java.lang.reflect.Method.invoke(Native Method)
at com.android.internal.os.RuntimeInit$MethodAndArgsCaller.run(RuntimeInit.java:594)
at com.android.internal.os.ZygoteInit.main(ZygoteInit.java:947)

引起：java.lang.classNotFoundException：com.google.android.gms.tasks.Tasks ……还有 43 个

请知道如何解决该问题的人然后回复