Bug Android Error Gradle build failed.

Hello everybody,
I recently updated Unity to version 2021.1.5f1, when I try to compile for Android I get these errors:

Error 1:

Code (CSharp):

1. Starting a Gradle Daemon, 1 incompatible Daemon could not be reused, use --status for details
2.  
3. > Configure project :launcher
4. WARNING: The option 'android.enableR8' is deprecated and should not be used anymore.
5. It will be removed in a future version of the Android Gradle plugin, and will no longer allow you to disable R8.
6.  
7. > Task :launcher:preBuild UP-TO-DATE
8. > Task :unityLibrary:an_library.bundle:preBuild UP-TO-DATE
9. > Task :unityLibrary:preBuild UP-TO-DATE
10. > Task :unityLibrary:an_library.bundle:preDebugBuild UP-TO-DATE
11. > Task :launcher:preDebugBuild UP-TO-DATE
12. > Task :unityLibrary:preDebugBuild UP-TO-DATE
13. > Task :unityLibrary:packageDebugRenderscript NO-SOURCE
14. > Task :unityLibrary:an_library.bundle:compileDebugAidl NO-SOURCE
15. > Task :unityLibrary:an_library.bundle:packageDebugRenderscript NO-SOURCE
16. > Task :unityLibrary:compileDebugAidl NO-SOURCE
17. > Task :unityLibrary:an_library.bundle:compileDebugRenderscript NO-SOURCE
18. > Task :unityLibrary:compileDebugRenderscript NO-SOURCE
19. > Task :unityLibrary:an_library.bundle:generateDebugResValues
20. > Task :unityLibrary:an_library.bundle:generateDebugResources
21. > Task :launcher:generateDebugBuildConfig
22. > Task :unityLibrary:generateDebugBuildConfig
23. > Task :launcher:compileDebugAidl NO-SOURCE
24. > Task :launcher:compileDebugRenderscript NO-SOURCE
25. > Task :unityLibrary:generateDebugResValues
26. > Task :unityLibrary:generateDebugResources
27. > Task :launcher:mainApkListPersistenceDebug
28. > Task :launcher:generateDebugResValues
29. > Task :launcher:generateDebugResources
30. > Task :launcher:createDebugCompatibleScreenManifests
31. > Task :launcher:extractDeepLinksDebug
32. > Task :launcher:mergeDebugShaders
33. > Task :launcher:compileDebugShaders
34. > Task :launcher:generateDebugAssets
35. > Task :launcher:processDebugJavaRes NO-SOURCE
36. > Task :unityLibrary:packageDebugResources
37. > Task :unityLibrary:extractDeepLinksDebug
38. > Task :launcher:checkDebugDuplicateClasses FAILED
39. > Task :unityLibrary:an_library.bundle:packageDebugResources
40. > Task :unityLibrary:processDebugManifest
41. > Task :unityLibrary:parseDebugLocalResources
42. > Task :unityLibrary:compileDebugLibraryResources
43. 17 actionable tasks: 17 executed
44.  
45. UnityEngine.GUIUtility:ProcessEvent (int,intptr,bool&)

Error 2:

Code (CSharp):

1. FAILURE: Build failed with an exception.
2.  
3. * What went wrong:
4. Execution failed for task ':launcher:checkDebugDuplicateClasses'.
5. > 1 exception was raised by workers:
6.   java.lang.RuntimeException: java.lang.RuntimeException: Duplicate class com.android.billingclient.BuildConfig found in modules com.android.billingclient.billing-3.0.1-runtime.jar (:billing-3.0.1:) and com.android.billingclient.billing-3.0.1-runtime.jar (:com.android.billingclient.billing-3.0.1:)
7.   Duplicate class com.android.billingclient.api.AccountIdentifiers found in modules com.android.billingclient.billing-3.0.1-runtime.jar (:billing-3.0.1:) and com.android.billingclient.billing-3.0.1-runtime.jar (:com.android.billingclient.billing-3.0.1:)
8.   Duplicate class com.android.billingclient.api.AcknowledgePurchaseParams found in modules com.android.billingclient.billing-3.0.1-runtime.jar (:billing-3.0.1:) and com.android.billingclient.billing-3.0.1-runtime.jar (:com.android.billingclient.billing-3.0.1:)
9.   Duplicate class com.android.billingclient.api.AcknowledgePurchaseParams$Builder found in modules com.android.billingclient.billing-3.0.1-runtime.jar (:billing-3.0.1:) and com.android.billingclient.billing-3.0.1-runtime.jar (:com.android.billingclient.billing-3.0.1:)
10.   Duplicate class com.android.billingclient.api.AcknowledgePurchaseResponseListener found in modules com.android.billingclient.billing-3.0.1-runtime.jar (:billing-3.0.1:) and com.android.billingclient.billing-3.0.1-runtime.jar (:com.android.billingclient.billing-3.0.1:)
11.   Duplicate class com.android.billingclient.api.BillingClient found in modules com.android.billingclient.billing-3.0.1-runtime.jar (:billing-3.0.1:) and com.android.billingclient.billing-3.0.1-runtime.jar (:com.android.billingclient.billing-3.0.1:)
12.   Duplicate class com.android.billingclient.api.BillingClient$BillingResponseCode found in modules com.android.billingclient.billing-3.0.1-runtime.jar (:billing-3.0.1:) and com.android.billingclient.billing-3.0.1-runtime.jar (:com.android.billingclient.billing-3.0.1:)
13.   Duplicate class com.android.billingclient.api.BillingClient$Builder found in modules com.android.billingclient.billing-3.0.1-runtime.jar (:billing-3.0.1:) and com.android.billingclient.billing-3.0.1-runtime.jar (:com.android.billingclient.billing-3.0.1:)
14.   Duplicate class com.android.billingclient.api.BillingClient$FeatureType found in modules com.android.billingclient.billing-3.0.1-runtime.jar (:billing-3.0.1:) and com.android.billingclient.billing-3.0.1-runtime.jar (:com.android.billingclient.billing-3.0.1:)
15.   Duplicate class com.android.billingclient.api.BillingClient$SkuType found in modules com.android.billingclient.billing-3.0.1-runtime.jar (:billing-3.0.1:) and com.android.billingclient.billing-3.0.1-runtime.jar (:com.android.billingclient.billing-3.0.1:)
16.   Duplicate class com.android.billingclient.api.BillingClientImpl found in modules com.android.billingclient.billing-3.0.1-runtime.jar (:billing-3.0.1:) and com.android.billingclient.billing-3.0.1-runtime.jar (:com.android.billingclient.billing-3.0.1:)
17.   Duplicate class com.android.billingclient.api.BillingClientImpl$zza found in modules com.android.billingclient.billing-3.0.1-runtime.jar (:billing-3.0.1:) and com.android.billingclient.billing-3.0.1-runtime.jar (:com.android.billingclient.billing-3.0.1:)
18.   Duplicate class com.android.billingclient.api.BillingClientImpl$zzb found in modules com.android.billingclient.billing-3.0.1-runtime.jar (:billing-3.0.1:) and com.android.billingclient.billing-3.0.1-runtime.jar (:com.android.billingclient.billing-3.0.1:)
19.   Duplicate class com.android.billingclient.api.BillingClientStateListener found in modules com.android.billingclient.billing-3.0.1-runtime.jar (:billing-3.0.1:) and com.android.billingclient.billing-3.0.1-runtime.jar (:com.android.billingclient.billing-3.0.1:)
20.   Duplicate class com.android.billingclient.api.BillingFlowParams found in modules com.android.billingclient.billing-3.0.1-runtime.jar (:billing-3.0.1:) and com.android.billingclient.billing-3.0.1-runtime.jar (:com.android.billingclient.billing-3.0.1:)
21.   Duplicate class com.android.billingclient.api.BillingFlowParams$Builder found in modules com.android.billingclient.billing-3.0.1-runtime.jar (:billing-3.0.1:) and com.android.billingclient.billing-3.0.1-runtime.jar (:com.android.billingclient.billing-3.0.1:)
22.   Duplicate class com.android.billingclient.api.BillingFlowParams$ProrationMode found in modules com.android.billingclient.billing-3.0.1-runtime.jar (:billing-3.0.1:) and com.android.billingclient.billing-3.0.1-runtime.jar (:com.android.billingclient.billing-3.0.1:)
23.   Duplicate class com.android.billingclient.api.BillingResult found in modules com.android.billingclient.billing-3.0.1-runtime.jar (:billing-3.0.1:) and com.android.billingclient.billing-3.0.1-runtime.jar (:com.android.billingclient.billing-3.0.1:)
24.   Duplicate class com.android.billingclient.api.BillingResult$Builder found in modules com.android.billingclient.billing-3.0.1-runtime.jar (:billing-3.0.1:) and com.android.billingclient.billing-3.0.1-runtime.jar (:com.android.billingclient.billing-3.0.1:)
25.   Duplicate class com.android.billingclient.api.ConsumeParams found in modules com.android.billingclient.billing-3.0.1-runtime.jar (:billing-3.0.1:) and com.android.billingclient.billing-3.0.1-runtime.jar (:com.android.billingclient.billing-3.0.1:)
26.   Duplicate class com.android.billingclient.api.ConsumeParams$Builder found in modules com.android.billingclient.billing-3.0.1-runtime.jar (:billing-3.0.1:) and com.android.billingclient.billing-3.0.1-runtime.jar (:com.android.billingclient.billing-3.0.1:)
27.   Duplicate class com.android.billingclient.api.ConsumeResponseListener found in modules com.android.billingclient.billing-3.0.1-runtime.jar (:billing-3.0.1:) and com.android.billingclient.billing-3.0.1-runtime.jar (:com.android.billingclient.billing-3.0.1:)
28.   Duplicate class com.android.billingclient.api.PriceChangeConfirmationListener found in modules com.android.billingclient.billing-3.0.1-runtime.jar (:billing-3.0.1:) and com.android.billingclient.billing-3.0.1-runtime.jar (:com.android.billingclient.billing-3.0.1:)
29.   Duplicate class com.android.billingclient.api.PriceChangeFlowParams found in modules com.android.billingclient.billing-3.0.1-runtime.jar (:billing-3.0.1:) and com.android.billingclient.billing-3.0.1-runtime.jar (:com.android.billingclient.billing-3.0.1:)
30.   Duplicate class com.android.billingclient.api.PriceChangeFlowParams$Builder found in modules com.android.billingclient.billing-3.0.1-runtime.jar (:billing-3.0.1:) and com.android.billingclient.billing-3.0.1-runtime.jar (:com.android.billingclient.billing-3.0.1:)
31.   Duplicate class com.android.billingclient.api.ProxyBillingActivity found in modules com.android.billingclient.billing-3.0.1-runtime.jar (:billing-3.0.1:) and com.android.billingclient.billing-3.0.1-runtime.jar (:com.android.billingclient.billing-3.0.1:)
32.   Duplicate class com.android.billingclient.api.Purchase found in modules com.android.billingclient.billing-3.0.1-runtime.jar (:billing-3.0.1:) and com.android.billingclient.billing-3.0.1-runtime.jar (:com.android.billingclient.billing-3.0.1:)
33.   Duplicate class com.android.billingclient.api.Purchase$PurchaseState found in modules com.android.billingclient.billing-3.0.1-runtime.jar (:billing-3.0.1:) and com.android.billingclient.billing-3.0.1-runtime.jar (:com.android.billingclient.billing-3.0.1:)
34.   Duplicate class com.android.billingclient.api.Purchase$PurchasesResult found in modules com.android.billingclient.billing-3.0.1-runtime.jar (:billing-3.0.1:) and com.android.billingclient.billing-3.0.1-runtime.jar (:com.android.billingclient.billing-3.0.1:)
35.   Duplicate class com.android.billingclient.api.PurchaseHistoryRecord found in modules com.android.billingclient.billing-3.0.1-runtime.jar (:billing-3.0.1:) and com.android.billingclient.billing-3.0.1-runtime.jar (:com.android.billingclient.billing-3.0.1:)
36.   Duplicate class com.android.billingclient.api.PurchaseHistoryResponseListener found in modules com.android.billingclient.billing-3.0.1-runtime.jar (:billing-3.0.1:) and com.android.billingclient.billing-3.0.1-runtime.jar (:com.android.billingclient.billing-3.0.1:)
37.   Duplicate class com.android.billingclient.api.PurchasesUpdatedListener found in modules com.android.billingclient.billing-3.0.1-runtime.jar (:billing-3.0.1:) and com.android.billingclient.billing-3.0.1-runtime.jar (:com.android.billingclient.billing-3.0.1:)
38.   Duplicate class com.android.billingclient.api.SkuDetails found in modules com.android.billingclient.billing-3.0.1-runtime.jar (:billing-3.0.1:) and com.android.billingclient.billing-3.0.1-runtime.jar (:com.android.billingclient.billing-3.0.1:)
39.   Duplicate class com.android.billingclient.api.SkuDetails$zza found in modules com.android.billingclient.billing-3.0.1-runtime.jar (:billing-3.0.1:) and com.android.billingclient.billing-3.0.1-runtime.jar (:com.android.billingclient.billing-3.0.1:)
40.   Duplicate class com.android.billingclient.api.SkuDetailsParams found in modules com.android.billingclient.billing-3.0.1-runtime.jar (:billing-3.0.1:) and com.android.billingclient.billing-3.0.1-runtime.jar (:com.android.billingclient.billing-3.0.1:)
41.   Duplicate class com.android.billingclient.api.SkuDetailsParams$Builder found in modules com.android.billingclient.billing-3.0.1-runtime.jar (:billing-3.0.1:) and com.android.billingclient.billing-3.0.1-runtime.jar (:com.android.billingclient.billing-3.0.1:)
42.   Duplicate class com.android.billingclient.api.SkuDetailsResponseListener found in modules com.android.billingclient.billing-3.0.1-runtime.jar (:billing-3.0.1:) and com.android.billingclient.billing-3.0.1-runtime.jar (:com.android.billingclient.billing-3.0.1:)
43.   Duplicate class com.android.billingclient.api.zza found in modules com.android.billingclient.billing-3.0.1-runtime.jar (:billing-3.0.1:) and com.android.billingclient.billing-3.0.1-runtime.jar (:com.android.billingclient.billing-3.0.1:)
44.   Duplicate class com.android.billingclient.api.zzaa found in modules com.android.billingclient.billing-3.0.1-runtime.jar (:billing-3.0.1:) and com.android.billingclient.billing-3.0.1-runtime.jar (:com.android.billingclient.billing-3.0.1:)
45.   Duplicate class com.android.billingclient.api.zzab found in modules com.android.billingclient.billing-3.0.1-runtime.jar (:billing-3.0.1:) and com.android.billingclient.billing-3.0.1-runtime.jar (:com.android.billingclient.billing-3.0.1:)
46.   Duplicate class com.android.billingclient.api.zzac found in modules com.android.billingclient.billing-3.0.1-runtime.jar (:billing-3.0.1:) and com.android.billingclient.billing-3.0.1-runtime.jar (:com.android.billingclient.billing-3.0.1:)
47.   Duplicate class com.android.billingclient.api.zzad found in modules com.android.billingclient.billing-3.0.1-runtime.jar (:billing-3.0.1:) and com.android.billingclient.billing-3.0.1-runtime.jar (:com.android.billingclient.billing-3.0.1:)
48.   Duplicate class com.android.billingclient.api.zzae found in modules com.android.billingclient.billing-3.0.1-runtime.jar (:billing-3.0.1:) and com.android.billingclient.billing-3.0.1-runtime.jar (:com.android.billingclient.billing-3.0.1:)
49.   Duplicate class com.android.billingclient.api.zzaf found in modules com.android.billingclient.billing-3.0.1-runtime.jar (:billing-3.0.1:) and com.android.billingclient.billing-3.0.1-runtime.jar (:com.android.billingclient.billing-3.0.1:)
50.   Duplicate class com.android.billingclient.api.zzag found in modules com.android.billingclient.billing-3.0.1-runtime.jar (:billing-3.0.1:) and com.android.billingclient.billing-3.0.1-runtime.jar (:com.android.billingclient.billing-3.0.1:)
51.   Duplicate class com.android.billingclient.api.zzah found in modules com.android.billingclient.billing-3.0.1-runtime.jar (:billing-3.0.1:) and com.android.billingclient.billing-3.0.1-runtime.jar (:com.android.billingclient.billing-3.0.1:)
52.   Duplicate class com.android.billingclient.api.zzai found in modules com.android.billingclient.billing-3.0.1-runtime.jar (:billing-3.0.1:) and com.android.billingclient.billing-3.0.1-runtime.jar (:com.android.billingclient.billing-3.0.1:)
53.   Duplicate class com.android.billingclient.api.zzaj found in modules com.android.billingclient.billing-3.0.1-runtime.jar (:billing-3.0.1:) and com.android.billingclient.billing-3.0.1-runtime.jar (:com.android.billingclient.billing-3.0.1:)
54.   Duplicate class com.android.billingclient.api.zzak found in modules com.android.billingclient.billing-3.0.1-runtime.jar (:billing-3.0.1:) and com.android.billingclient.billing-3.0.1-runtime.jar (:com.android.billingclient.billing-3.0.1:)
55.   Duplicate class com.android.billingclient.api.zzal found in modules com.android.billingclient.billing-3.0.1-runtime.jar (:billing-3.0.1:) and com.android.billingclient.billing-3.0.1-runtime.jar (:com.android.billingclient.billing-3.0.1:)
56.   Duplicate class com.android.billingclient.api.zzam found in modules com.android.billingclient.billing-3.0.1-runtime.jar (:billing-3.0.1:) and com.android.billingclient.billing-3.0.1-runtime.jar (:com.android.billingclient.billing-3.0.1:)
57.   Duplicate class com.android.billingclient.api.zzan found in modules com.android.billingclient.billing-3.0.1-runtime.jar (:billing-3.0.1:) and com.android.billingclient.billing-3.0.1-runtime.jar (:com.android.billingclient.billing-3.0.1:)
58.   Duplicate class com.android.billingclient.api.zzao found in modules com.android.billingclient.billing-3.0.1-runtime.jar (:billing-3.0.1:) and com.android.billingclient.billing-3.0.1-runtime.jar (:com.android.billingclient.billing-3.0.1:)
59.   Duplicate class com.android.billingclient.api.zzap found in modules com.android.billingclient.billing-3.0.1-runtime.jar (:billing-3.0.1:) and com.android.billingclient.billing-3.0.1-runtime.jar (:com.android.billingclient.billing-3.0.1:)
60.   Duplicate class com.android.billingclient.api.zzap$zza found in modules com.android.billingclient.billing-3.0.1-runtime.jar (:billing-3.0.1:) and com.android.billingclient.billing-3.0.1-runtime.jar (:com.android.billingclient.billing-3.0.1:)
61.   Duplicate class com.android.billingclient.api.zzb found in modules com.android.billingclient.billing-3.0.1-runtime.jar (:billing-3.0.1:) and com.android.billingclient.billing-3.0.1-runtime.jar (:com.android.billingclient.billing-3.0.1:)
62.   Duplicate class com.android.billingclient.api.zzb$zza found in modules com.android.billingclient.billing-3.0.1-runtime.jar (:billing-3.0.1:) and com.android.billingclient.billing-3.0.1-runtime.jar (:com.android.billingclient.billing-3.0.1:)
63.   Duplicate class com.android.billingclient.api.zzc found in modules com.android.billingclient.billing-3.0.1-runtime.jar (:billing-3.0.1:) and com.android.billingclient.billing-3.0.1-runtime.jar (:com.android.billingclient.billing-3.0.1:)
64.   Duplicate class com.android.billingclient.api.zzd found in modules com.android.billingclient.billing-3.0.1-runtime.jar (:billing-3.0.1:) and com.android.billingclient.billing-3.0.1-runtime.jar (:com.android.billingclient.billing-3.0.1:)
65.   Duplicate class com.android.billingclient.api.zze found in modules com.android.billingclient.billing-3.0.1-runtime.jar (:billing-3.0.1:) and com.android.billingclient.billing-3.0.1-runtime.jar (:com.android.billingclient.billing-3.0.1:)
66.   Duplicate class com.android.billingclient.api.zzf found in modules com.android.billingclient.billing-3.0.1-runtime.jar (:billing-3.0.1:) and com.android.billingclient.billing-3.0.1-runtime.jar (:com.android.billingclient.billing-3.0.1:)
67.   Duplicate class com.android.billingclient.api.zzg found in modules com.android.billingclient.billing-3.0.1-runtime.jar (:billing-3.0.1:) and com.android.billingclient.billing-3.0.1-runtime.jar (:com.android.billingclient.billing-3.0.1:)
68.   Duplicate class com.android.billingclient.api.zzh found in modules com.android.billingclient.billing-3.0.1-runtime.jar (:billing-3.0.1:) and com.android.billingclient.billing-3.0.1-runtime.jar (:com.android.billingclient.billing-3.0.1:)
69.   Duplicate class com.android.billingclient.api.zzi found in modules com.android.billingclient.billing-3.0.1-runtime.jar (:billing-3.0.1:) and com.android.billingclient.billing-3.0.1-runtime.jar (:com.android.billingclient.billing-3.0.1:)
70.   Duplicate class com.android.billingclient.api.zzj found in modules<message truncated>

Error 3:

Code (CSharp):

1. CommandInvokationFailure: Gradle build failed.
2. E:\Programmi Lavoro\Unity\2021.1.5f1\Editor\Data\PlaybackEngines\AndroidPlayer\OpenJDK\bin\java.exe -classpath "E:\Programmi Lavoro\Unity\2021.1.5f1\Editor\Data\PlaybackEngines\AndroidPlayer\Tools\gradle\lib\gradle-launcher-5.6.4.jar" org.gradle.launcher.GradleMain "-Dorg.gradle.jvmargs=-Xmx4096m" "assembleDebug"
3.  
4. stderr[
5.  
6. FAILURE: Build failed with an exception.
7.  
8. * What went wrong:
9. Execution failed for task ':launcher:checkDebugDuplicateClasses'.
10. > 1 exception was raised by workers:
11.   java.lang.RuntimeException: java.lang.RuntimeException: Duplicate class com.android.billingclient.BuildConfig found in modules com.android.billingclient.billing-3.0.1-runtime.jar (:billing-3.0.1:) and com.android.billingclient.billing-3.0.1-runtime.jar (:com.android.billingclient.billing-3.0.1:)
12.   Duplicate class com.android.billingclient.api.AccountIdentifiers found in modules com.android.billingclient.billing-3.0.1-runtime.jar (:billing-3.0.1:) and com.android.billingclient.billing-3.0.1-runtime.jar (:com.android.billingclient.billing-3.0.1:)
13.   Duplicate class com.android.billingclient.api.AcknowledgePurchaseParams found in modules com.android.billingclient.billing-3.0.1-runtime.jar (:billing-3.0.1:) and com.android.billingclient.billing-3.0.1-runtime.jar (:com.android.billingclient.billing-3.0.1:)
14.   Duplicate class com.android.billingclient.api.AcknowledgePurchaseParams$Builder found in modules com.android.billingclient.billing-3.0.1-runtime.jar (:billing-3.0.1:) and com.android.billingclient.billing-3.0.1-runtime.jar (:com.android.billingclient.billing-3.0.1:)
15.   Duplicate class com.android.billingclient.api.AcknowledgePurchaseResponseListener found in modules com.android.billingclient.billing-3.0.1-runtime.jar (:billing-3.0.1:) and com.android.billingclient.billing-3.0.1-runtime.jar (:com.android.billingclient.billing-3.0.1:)
16.   Duplicate class com.android.billingclient.api.BillingClient found in modules com.android.billingclient.billing-3.0.1-runtime.jar (:billing-3.0.1:) and com.android.billingclient.billing-3.0.1-runtime.jar (:com.android.billingclient.billing-3.0.1:)
17.   Duplicate class com.android.billingclient.api.BillingClient$BillingResponseCode found in modules com.android.billingclient.billing-3.0.1-runtime.jar (:billing-3.0.1:) and com.android.billingclient.billing-3.0.1-runtime.jar (:com.android.billingclient.billing-3.0.1:)
18.   Duplicate class com.android.billingclient.api.BillingClient$Builder found in modules com.android.billingclient.billing-3.0.1-runtime.jar (:billing-3.0.1:) and com.android.billingclient.billing-3.0.1-runtime.jar (:com.android.billingclient.billing-3.0.1:)
19.   Duplicate class com.android.billingclient.api.BillingClient$FeatureType found in modules com.android.billingclient.billing-3.0.1-runtime.jar (:billing-3.0.1:) and com.android.billingclient.billing-3.0.1-runtime.jar (:com.android.billingclient.billing-3.0.1:)
20.   Duplicate class com.android.billingclient.api.BillingClient$SkuType found in modules com.android.billingclient.billing-3.0.1-runtime.jar (:billing-3.0.1:) and com.android.billingclient.billing-3.0.1-runtime.jar (:com.android.billingclient.billing-3.0.1:)
21.   Duplicate class com.android.billingclient.api.BillingClientImpl found in modules com.android.billingclient.billing-3.0.1-runtime.jar (:billing-3.0.1:) and com.android.billingclient.billing-3.0.1-runtime.jar (:com.android.billingclient.billing-3.0.1:)
22.   Duplicate class com.android.billingclient.api.BillingClientImpl$zza found in modules com.android.billingclient.billing-3.0.1-runtime.jar (:billing-3.0.1:) and com.android.billingclient.billing-3.0.1-runtime.jar (:com.android.billingclient.billing-3.0.1:)
23.   Duplicate class com.android.billingclient.api.BillingClientImpl$zzb found in modules com.android.billingclient.billing-3.0.1-runtime.jar (:billing-3.0.1:) and com.android.billingclient.billing-3.0.1-runtime.jar (:com.android.billingclient.billing-3.0.1:)
24.   Duplicate class com.android.billingclient.api.BillingClientStateListener found in modules com.android.billingclient.billing-3.0.1-runtime.jar (:billing-3.0.1:) and com.android.billingclient.billing-3.0.1-runtime.jar (:com.android.billingclient.billing-3.0.1:)
25.   Duplicate class com.android.billingclient.api.BillingFlowParams found in modules com.android.billingclient.billing-3.0.1-runtime.jar (:billing-3.0.1:) and com.android.billingclient.billing-3.0.1-runtime.jar (:com.android.billingclient.billing-3.0.1:)
26.   Duplicate class com.android.billingclient.api.BillingFlowParams$Builder found in modules com.android.billingclient.billing-3.0.1-runtime.jar (:billing-3.0.1:) and com.android.billingclient.billing-3.0.1-runtime.jar (:com.android.billingclient.billing-3.0.1:)
27.   Duplicate class com.android.billingclient.api.BillingFlowParams$ProrationMode found in modules com.android.billingclient.billing-3.0.1-runtime.jar (:billing-3.0.1:) and com.android.billingclient.billing-3.0.1-runtime.jar (:com.android.billingclient.billing-3.0.1:)
28.   Duplicate class com.android.billingclient.api.BillingResult found in modules com.android.billingclient.billing-3.0.1-runtime.jar (:billing-3.0.1:) and com.android.billingclient.billing-3.0.1-runtime.jar (:com.android.billingclient.billing-3.0.1:)
29.   Duplicate class com.android.billingclient.api.BillingResult$Builder found in modules com.android.billingclient.billing-3.0.1-runtime.jar (:billing-3.0.1:) and com.android.billingclient.billing-3.0.1-runtime.jar (:com.android.billingclient.billing-3.0.1:)
30.   Duplicate class com.android.billingclient.api.ConsumeParams found in modules com.android.billingclient.billing-3.0.1-runtime.jar (:billing-3.0.1:) and com.android.billingclient.billing-3.0.1-runtime.jar (:com.android.billingclient.billing-3.0.1:)
31.   Duplicate class com.android.billingclient.api.ConsumeParams$Builder found in modules com.android.billingclient.billing-3.0.1-runtime.jar (:billing-3.0.1:) and com.android.billingclient.billing-3.0.1-runtime.jar (:com.android.billingclient.billing-3.0.1:)
32.   Duplicate class com.android.billingclient.api.ConsumeResponseListener found in modules com.android.billingclient.billing-3.0.1-runtime.jar (:billing-3.0.1:) and com.android.billingclient.billing-3.0.1-runtime.jar (:com.android.billingclient.billing-3.0.1:)
33.   Duplicate class com.android.billingclient.api.PriceChangeConfirmationListener found in modules com.android.billingclient.billing-3.0.1-runtime.jar (:billing-3.0.1:) and com.android.billingclient.billing-3.0.1-runtime.jar (:com.android.billingclient.billing-3.0.1:)
34.   Duplicate class com.android.billingclient.api.PriceChangeFlowParams found in modules com.android.billingclient.billing-3.0.1-runtime.jar (:billing-3.0.1:) and com.android.billingclient.billing-3.0.1-runtime.jar (:com.android.billingclient.billing-3.0.1:)
35.   Duplicate class com.android.billingclient.api.PriceChangeFlowParams$Builder found in modules com.android.billingclient.billing-3.0.1-runtime.jar (:billing-3.0.1:) and com.android.billingclient.billing-3.0.1-runtime.jar (:com.android.billingclient.billing-3.0.1:)
36.   Duplicate class com.android.billingclient.api.ProxyBillingActivity found in modules com.android.billingclient.billing-3.0.1-runtime.jar (:billing-3.0.1:) and com.android.billingclient.billing-3.0.1-runtime.jar (:com.android.billingclient.billing-3.0.1:)
37.   Duplicate class com.android.billingclient.api.Purchase found in modules com.android.billingclient.billing-3.0.1-runtime.jar (:billing-3.0.1:) and com.android.billingclient.billing-3.0.1-runtime.jar (:com.android.billingclient.billing-3.0.1:)
38.   Duplicate class com.android.billingclient.api.Purchase$PurchaseState found in modules com.android.billingclient.billing-3.0.1-runtime.jar (:billing-3.0.1:) and com.android.billingclient.billing-3.0.1-runtime.jar (:com.android.billingclient.billing-3.0.1:)
39.   Duplicate class com.android.billingclient.api.Purchase$PurchasesResult found in modules com.android.billingclient.billing-3.0.1-runtime.jar (:billing-3.0.1:) and com.android.billingclient.billing-3.0.1-runtime.jar (:com.android.billingclient.billing-3.0.1:)
40.   Duplicate class com.android.billingclient.api.PurchaseHistoryRecord found in modules com.android.billingclient.billing-3.0.1-runtime.jar (:billing-3.0.1:) and com.android.billingclient.billing-3.0.1-runtime.jar (:com.android.billingclient.billing-3.0.1:)
41.   Duplicate class com.android.billingclient.api.PurchaseHistoryResponseListener found in modules com.android.billingclient.billing-3.0.1-runtime.jar (:billing-3.0.1:) and com.android.billingclient.billing-3.0.1-runtime.jar (:com.android.billingclient.billing-3.0.1:)
42.   Duplicate class com.android.billingclient.api.PurchasesUpdatedListener found in modules com.android.billingclient.billing-3.0.1-runtime.jar (:billing-3.0.1:) and com.android.billingclient.billing-3.0.1-runtime.jar (:com.android.billingclient.billing-3.0.1:)
43.   Duplicate class com.android.billingclient.api.SkuDetails found in modules com.android.billingclient.billing-3.0.1-runtime.jar (:billing-3.0.1:) and com.android.billingclient.billing-3.0.1-runtime.jar (:com.android.billingclient.billing-3.0.1:)
44.   Duplicate class com.android.billingclient.api.SkuDetails$zza found in modules com.android.billingclient.billing-3.0.1-runtime.jar (:billing-3.0.1:) and com.android.billingclient.billing-3.0.1-runtime.jar (:com.android.billingclient.billing-3.0.1:)
45.   Duplicate class com.android.billingclient.api.SkuDetailsParams found in modules com.android.billingclient.billing-3.0.1-runtime.jar (:billing-3.0.1:) and com.android.billingclient.billing-3.0.1-runtime.jar (:com.android.billingclient.billing-3.0.1:)
46.   Duplicate class com.android.billingclient.api.SkuDetailsParams$Builder found in modules com.android.billingclient.billing-3.0.1-runtime.jar (:billing-3.0.1:) and com.android.billingclient.billing-3.0.1-runtime.jar (:com.android.billingclient.billing-3.0.1:)
47.   Duplicate class com.android.billingclient.api.SkuDetailsResponseListener found in modules com.android.billingclient.billing-3.0.1-runtime.jar (:billing-3.0.1:) and com.android.billingclient.billing-3.0.1-runtime.jar (:com.android.billingclient.billing-3.0.1:)
48.   Duplicate class com.android.billingclient.api.zza found in modules com.android.billingclient.billing-3.0.1-runtime.jar (:billing-3.0.1:) and com.android.billingclient.billing-3.0.1-runtime.jar (:com.android.billingclient.billing-3.0.1:)
49.   Duplicate class com.android.billingclient.api.zzaa found in modules com.android.billingclient.billing-3.0.1-runtime.jar (:billing-3.0.1:) and com.android.billingclient.billing-3.0.1-runtime.jar (:com.android.billingclient.billing-3.0.1:)
50.   Duplicate class com.android.billingclient.api.zzab found in modules com.android.billingclient.billing-3.0.1-runtime.jar (:billing-3.0.1:) and com.android.billingclient.billing-3.0.1-runtime.jar (:com.android.billingclient.billing-3.0.1:)
51.   Duplicate class com.android.billingclient.api.zzac found in modules com.android.billingclient.billing-3.0.1-runtime.jar (:billing-3.0.1:) and com.android.billingclient.billing-3.0.1-runtime.jar (:com.android.billingclient.billing-3.0.1:)
52.   Duplicate class com.android.billingclient.api.zzad found in modules com.android.billingclient.billing-3.0.1-runtime.jar (:billing-3.0.1:) and com.android.billingclient.billing-3.0.1-runtime.jar (:com.android.billingclient.billing-3.0.1:)
53.   Duplicate class com.android.billingclient.api.zzae found in modules com.android.billingclient.billing-3.0.1-runtime.jar (:billing-3.0.1:) and com.android.billingclient.billing-3.0.1-runtime.jar (:com.android.billingclient.billing-3.0.1:)
54.   Duplicate class com.android.billingclient.api.zzaf found in modules com.android.billingclient.billing-3.0.1-runtime.jar (:billing-3.0.1:) and com.android.billingclient.billing-3.0.1-runtime.jar (:com.android.billingclient.billing-3.0.1:)
55.   Duplicate class com.android.billingclient.api.zzag found in modules com.android.billingclient.billing-3.0.1-runtime.jar (:billing-3.0.1:) and com.android.billingclient.billing-3.0.1-runtime.jar (:com.android.billingclient.billing-3.0.1:)
56.   Duplicate class com.android.billingclient.api.zzah found in modules com.android.billingclient.billing-3.0.1-runtime.jar (:billing-3.0.1:) and com.android.billingclient.billing-3.0.1-runtime.jar (:com.android.billingclient.billing-3.0.1:)
57.   Duplicate class com.android.billingclient.api.zzai found in modules com.android.billingclient.billing-3.0.1-runtime.jar (:billing-3.0.1:) and com.android.billingclient.billing-3.0.1-runtime.jar (:com.android.billingclient.billing-3.0.1:)
58.   Duplicate class com.android.billingclient.api.zzaj found in modules com.android.billingclient.billing-3.0.1-runtime.jar (:billing-3.0.1:) and com.android.billingclient.billing-3.0.1-runtime.jar (:com.android.billingclient.billing-3.0.1:)
59.   Duplicate class com.android.billingclient.api.zzak found in modules com.android.billingclient.billing-3.0.1-runtime.jar (:billing-3.0.1:) and com.android.billingclient.billing-3.0.1-runtime.jar (:com.android.billingclient.billing-3.0.1:)
60.   Duplicate class com.android.billingclient.api.zzal found in modules com.android.billingclient.billing-3.0.1-runtime.jar (:billing-3.0.1:) and com.android.billingclient.billing-3.0.1-runtime.jar (:com.android.billingclient.billing-3.0.1:)
61.   Duplicate class com.android.billingclient.api.zzam found in modules com.android.billingclient.billing-3.0.1-runtime.jar (:billing-3.0.1:) and com.android.billingclient.billing-3.0.1-runtime.jar (:com.android.billingclient.billing-3.0.1:)
62.   Duplicate class com.android.billingclient.api.zzan found in modules com.android.billingclient.billing-3.0.1-runtime.jar (:billing-3.0.1:) and com.android.billingclient.billing-3.0.1-runtime.jar (:com.android.billingclient.billing-3.0.1:)
63.   Duplicate class com.android.billingclient.api.zzao found in modules com.android.billingclient.billing-3.0.1-runtime.jar (:billing-3.0.1:) and com.android.billingclient.billing-3.0.1-runtime.jar (:com.android.billingclient.billing-3.0.1:)
64.   Duplicate class com.android.billingclient.api.zzap found in modules com.android.billingclient.billing-3.0.1-runtime.jar (:billing-3.0.1:) and com.android.billingclient.billing-3.0.1-runtime.jar (:com.android.billingclient.billing-3.0.1:)
65.   Duplicate class com.android.billingclient.api.zzap$zza found in modules com.android.billingclient.billing-3.0.1-runtime.jar (:billing-3.0.1:) and com.android.billingclient.billing-3.0.1-runtime.jar (:com.android.billingclient.billing-3.0.1:)
66.   Duplicate class com.android.billingclient.api.zzb found in modules com.android.billingclient.billing-3.0.1-runtime.jar (:billing-3.0.1:) and com.android.billingclient.billing-3.0.1-runtime.jar (:com.android.billingclient.billing-3.0.1:)
67.   Duplicate class com.android.billingclient.api.zzb$zza found in modules com.android.billingclient.billing-3.0.1-runtime.jar (:billing-3.0.1:) and com.android.billingclient.billing-3.0.1-runtime.jar (:com.android.billingclient.billing-3.0.1:)
68.   Duplicate class com.android.billingclient.api.zzc found in modules com.android.billingclient.billing-3.0.1-runtime.jar (:billing-3.0.1:) and com.android.billingclient.billing-3.0.1-runtime.jar (:com.android.billingclient.billing-3.0.1:)
69.   Duplicate class com.android.billingclient.api.zzd found in modules com.android.billingclient.billing-3.0.1-runtime.jar (:billing-3.0.1:) and com.android.billingclient.billing-3.0.1-runtime.jar (:com.android.billingclient.billing-3.0.1:)
70.   Duplicate class com.android.billingclient.api.zze found in modules com.android.billingclient.billing-3.0.1-runtime.jar (:billing-3.0.1:) and com.android.billingclient.billing-3.0.1-runtime.jar (:com.android.billingclient.billing-3.0.1:)
71.   Duplicate class com.android.billingclient.api.zzf found in modules com.android.billingclient.billing-3.0.1-runtime.jar (:billing-3.0.1:) and com.android.billingclient.billing-3.0.1-runtime.jar (:com.android.billingclient.billing-3.0.1:)
72.   Duplicate class com.android.billingclient.api.zzg found in modules com.android.billingclient.billing-3.0.1-runtime.jar (:billing-3.0.1:) and com.android.billingclient.billing-3.0.1-runtime.jar (:com.android.billingclient.billing-3.0.1:)
73.   Duplicate class com.android.billingclient.api.zzh found in modules com.android.billingclient.billing-3.0.1-runtime.jar (:billing-3.0.1:) and com.android.billingclient.billi<message truncated>

The Gradle does not download along with the Unity version? Could it be that this is a Bug?

Thanks everyone for the support

 

Is it possible to get support?

 

Uncheck/check again- gradle installed with unity in preferences & restarting unity worked for me

 

Hi, I solved this by changing this line here in the build.gradle file (inside my project)
implementation fileTree(dir: 'libs', include: ['*.jar','*.aar'])
to
implementation fileTree(dir: 'libs', include: ['*.jar','*/Plugins/Android/*.aar'])

And also deleting one of all the duplications in this file...