Google Ads Integration problems

Imported GoogleMobileAds-v3.18.2 into my project. Build crashes during build gradle. Please help, I’ve been trying to fix it for several days.

 CommandInvokationFailure: Gradle build failed. 
 C:/Program Files/Unity/2019.2.0f1/Editor/Data/PlaybackEngines/AndroidPlayer/Tools\OpenJDK\Windows\bin\java.exe -classpath "C:\Program Files\Unity\2019.2.0f1\Editor\Data\PlaybackEngines\AndroidPlayer\Tools\gradle\lib\gradle-launcher-5.1.1.jar" org.gradle.launcher.GradleMain "-Dorg.gradle.jvmargs=-Xmx4096m" "assembleRelease"
 
 stderr[
 D8: Program type already present: android.support.v4.app.INotificationSideChannel$Stub
 
 FAILURE: Build failed with an exception.
 
 * What went wrong:
 Execution failed for task ':transformClassesAndResourcesWithR8ForRelease'.
 > com.android.tools.r8.CompilationFailedException: Compilation failed to complete
 
 * Try:
 Run with --stacktrace option to get the stack trace. Run with --info or --debug option to get more log output. Run with --scan to get full insights.
 
 * Get more help at https://help.gradle.org
 
 BUILD FAILED in 1m 41s
 ]
 stdout[
 > Task :preBuild UP-TO-DATE
 > Task :extractProguardFiles
 > Task :appodeal:preBuild UP-TO-DATE
 > Task :appodeal:preReleaseBuild UP-TO-DATE
 > Task :appodeal:checkReleaseManifest
 > Task :appodeal:processReleaseManifest
 > Task :GoogleMobileAdsPlugin:preBuild UP-TO-DATE
 > Task :GoogleMobileAdsPlugin:preReleaseBuild UP-TO-DATE
 > Task :GoogleMobileAdsPlugin:checkReleaseManifest
 > Task :GoogleMobileAdsPlugin:processReleaseManifest
 > Task :inmobi:preBuild UP-TO-DATE
 > Task :inmobi:preReleaseBuild UP-TO-DATE
 > Task :inmobi:checkReleaseManifest
 > Task :inmobi:processReleaseManifest
 > Task :startapp:preBuild UP-TO-DATE
 > Task :startapp:preReleaseBuild UP-TO-DATE
 > Task :startapp:checkReleaseManifest
 > Task :startapp:processReleaseManifest
 > Task :yandex-metrica:preBuild UP-TO-DATE
 > Task :yandex-metrica:preReleaseBuild UP-TO-DATE
 > Task :yandex-metrica:checkReleaseManifest
 > Task :yandex-metrica:processReleaseManifest
 > Task :preReleaseBuild
 > Task :appodeal:compileReleaseAidl NO-SOURCE
 > Task :GoogleMobileAdsPlugin:compileReleaseAidl NO-SOURCE
 > Task :inmobi:compileReleaseAidl NO-SOURCE
 > Task :startapp:compileReleaseAidl NO-SOURCE
 > Task :yandex-metrica:compileReleaseAidl NO-SOURCE
 > Task :compileReleaseAidl NO-SOURCE
 > Task :appodeal:packageReleaseRenderscript NO-SOURCE
 > Task :GoogleMobileAdsPlugin:packageReleaseRenderscript NO-SOURCE
 > Task :inmobi:packageReleaseRenderscript NO-SOURCE
 > Task :startapp:packageReleaseRenderscript NO-SOURCE
 > Task :yandex-metrica:packageReleaseRenderscript NO-SOURCE
 > Task :compileReleaseRenderscript NO-SOURCE
 > Task :checkReleaseManifest
 > Task :generateReleaseBuildConfig
 > Task :prepareLintJar
 > Task :generateReleaseSources
 > Task :appodeal:compileReleaseRenderscript NO-SOURCE
 > Task :appodeal:generateReleaseBuildConfig
 > Task :appodeal:generateReleaseResValues
 > Task :appodeal:generateReleaseResources
 > Task :appodeal:packageReleaseResources
 > Task :appodeal:generateReleaseRFile
 > Task :appodeal:prepareLintJar
 > Task :appodeal:generateReleaseSources
 > Task :appodeal:javaPreCompileRelease
 > Task :appodeal:compileReleaseJavaWithJavac
 > Task :appodeal:bundleLibCompileRelease
 > Task :GoogleMobileAdsPlugin:compileReleaseRenderscript NO-SOURCE
 > Task :GoogleMobileAdsPlugin:generateReleaseBuildConfig
 > Task :GoogleMobileAdsPlugin:generateReleaseResValues
 > Task :GoogleMobileAdsPlugin:generateReleaseResources
 > Task :GoogleMobileAdsPlugin:packageReleaseResources
 > Task :GoogleMobileAdsPlugin:generateReleaseRFile
 > Task :GoogleMobileAdsPlugin:prepareLintJar
 > Task :GoogleMobileAdsPlugin:generateReleaseSources
 > Task :GoogleMobileAdsPlugin:javaPreCompileRelease
 > Task :GoogleMobileAdsPlugin:compileReleaseJavaWithJavac
 > Task :GoogleMobileAdsPlugin:bundleLibCompileRelease
 > Task :inmobi:compileReleaseRenderscript NO-SOURCE
 > Task :inmobi:generateReleaseBuildConfig
 > Task :inmobi:generateReleaseResValues
 > Task :inmobi:generateReleaseResources
 > Task :inmobi:packageReleaseResources
 > Task :inmobi:generateReleaseRFile
 > Task :inmobi:prepareLintJar
 > Task :inmobi:generateReleaseSources
 > Task :inmobi:javaPreCompileRelease
 > Task :inmobi:compileReleaseJavaWithJavac
 > Task :inmobi:bundleLibCompileRelease
 > Task :startapp:compileReleaseRenderscript NO-SOURCE
 > Task :startapp:generateReleaseBuildConfig
 > Task :startapp:generateReleaseResValues
 > Task :startapp:generateReleaseResources
 > Task :startapp:packageReleaseResources
 > Task :startapp:generateReleaseRFile
 > Task :startapp:prepareLintJar
 > Task :startapp:generateReleaseSources
 > Task :startapp:javaPreCompileRelease
 > Task :startapp:compileReleaseJavaWithJavac
 > Task :startapp:bundleLibCompileRelease
 > Task :yandex-metrica:compileReleaseRenderscript NO-SOURCE
 > Task :yandex-metrica:generateReleaseBuildConfig
 > Task :yandex-metrica:generateReleaseResValues
 > Task :yandex-metrica:generateReleaseResources
 > Task :yandex-metrica:packageReleaseResources
 > Task :yandex-metrica:generateReleaseRFile
 > Task :yandex-metrica:prepareLintJar
 > Task :yandex-metrica:generateReleaseSources
 > Task :yandex-metrica:javaPreCompileRelease
 > Task :yandex-metrica:compileReleaseJavaWithJavac
 > Task :yandex-metrica:bundleLibCompileRelease
 > Task :javaPreCompileRelease
 > Task :mainApkListPersistenceRelease
 > Task :generateReleaseResValues
 > Task :generateReleaseResources
 > Task :mergeReleaseResources
 > Task :createReleaseCompatibleScreenManifests
 > Task :processReleaseManifest
 > Task :processReleaseResources
 > Task :compileReleaseJavaWithJavac
 > Task :compileReleaseSources
 > Task :appodeal:prepareLintJarForPublish
 > Task :GoogleMobileAdsPlugin:prepareLintJarForPublish
 > Task :inmobi:prepareLintJarForPublish
 > Task :startapp:prepareLintJarForPublish
 > Task :yandex-metrica:prepareLintJarForPublish
 > Task :lintVitalRelease
 > Task :mergeReleaseShaders
 > Task :compileReleaseShaders
 > Task :generateReleaseAssets
 > Task :appodeal:mergeReleaseShaders
 > Task :appodeal:compileReleaseShaders
 > Task :appodeal:generateReleaseAssets
 > Task :appodeal:packageReleaseAssets
 > Task :GoogleMobileAdsPlugin:mergeReleaseShaders
 > Task :GoogleMobileAdsPlugin:compileReleaseShaders
 > Task :GoogleMobileAdsPlugin:generateReleaseAssets
 > Task :GoogleMobileAdsPlugin:packageReleaseAssets
 > Task :inmobi:mergeReleaseShaders
 > Task :inmobi:compileReleaseShaders
 > Task :inmobi:generateReleaseAssets
 > Task :inmobi:packageReleaseAssets
 > Task :startapp:mergeReleaseShaders
 > Task :startapp:compileReleaseShaders
 > Task :startapp:generateReleaseAssets
 > Task :startapp:packageReleaseAssets
 > Task :yandex-metrica:mergeReleaseShaders
 > Task :yandex-metrica:compileReleaseShaders
 > Task :yandex-metrica:generateReleaseAssets
 > Task :yandex-metrica:packageReleaseAssets
 > Task :mergeReleaseAssets
 > Task :validateSigningRelease
 > Task :signingConfigWriterRelease
 > Task :processReleaseJavaRes NO-SOURCE
 > Task :appodeal:processReleaseJavaRes NO-SOURCE
 > Task :appodeal:bundleLibResRelease
 > Task :GoogleMobileAdsPlugin:processReleaseJavaRes NO-SOURCE
 > Task :GoogleMobileAdsPlugin:bundleLibResRelease
 > Task :inmobi:processReleaseJavaRes NO-SOURCE
 > Task :inmobi:bundleLibResRelease
 > Task :startapp:processReleaseJavaRes NO-SOURCE
 > Task :startapp:bundleLibResRelease
 > Task :yandex-metrica:processReleaseJavaRes NO-SOURCE
 > Task :yandex-metrica:bundleLibResRelease
 > Task :transformResourcesWithMergeJavaResForRelease
 > Task :appodeal:bundleLibRuntimeRelease
 > Task :appodeal:mergeReleaseConsumerProguardFiles
 > Task :GoogleMobileAdsPlugin:bundleLibRuntimeRelease
 > Task :GoogleMobileAdsPlugin:mergeReleaseConsumerProguardFiles
 > Task :inmobi:bundleLibRuntimeRelease
 > Task :inmobi:mergeReleaseConsumerProguardFiles
 > Task :startapp:bundleLibRuntimeRelease
 > Task :startapp:mergeReleaseConsumerProguardFiles
 > Task :yandex-metrica:bundleLibRuntimeRelease
 > Task :yandex-metrica:mergeReleaseConsumerProguardFiles
 
 > Task :transformClassesAndResourcesWithR8ForRelease
 R8 is the new Android code shrinker. If you experience any issues, please file a bug at
 https://issuetracker.google.com, using 'Shrinker (R8)' as component name. You can
 disable R8 by updating gradle.properties with 'android.enableR8=false'.
 Current version is: 1.4.77 (build b74371231cb896b02f83285efb055b7c00ff64d8 from go/r8bot (luci-r8-ci-archive-0-eqqf)).
 
 
 > Task :transformClassesAndResourcesWithR8ForRelease FAILED
 
 Deprecated Gradle features were used in this build, making it incompatible with Gradle 6.0.
 Use '--warning-mode all' to show the individual deprecation warnings.
 See https://docs.gradle.org/5.1.1/userguide/command_line_interface.html#sec:command_line_warnings
 106 actionable tasks: 106 executed
 ]
 exit code: 1
 UnityEditor.Android.Command.WaitForProgramToRun (UnityEditor.Utils.Program p, UnityEditor.Android.Command+WaitingForProcessToExit waitingForProcessToExit, System.String errorMsg) (at <8277255796414cc8b8865316c1676de5>:0)
 UnityEditor.Android.Command.Run (System.Diagnostics.ProcessStartInfo psi, UnityEditor.Android.Command+WaitingForProcessToExit waitingForProcessToExit, System.String errorMsg) (at <8277255796414cc8b8865316c1676de5>:0)
 UnityEditor.Android.Command.Run (System.String command, System.String args, System.String workingdir, UnityEditor.Android.Command+WaitingForProcessToExit waitingForProcessToExit, System.String errorMsg) (at <8277255796414cc8b8865316c1676de5>:0)
 UnityEditor.Android.AndroidJavaTools.RunJava (System.String args, System.String workingdir, System.Action`1[T] progress, System.String error) (at <8277255796414cc8b8865316c1676de5>:0)
 UnityEditor.Android.GradleWrapper.Run (UnityEditor.Android.AndroidJavaTools javaTools, System.String workingdir, System.String task, System.Action`1[T] progress) (at <8277255796414cc8b8865316c1676de5>:0)
 Rethrow as GradleInvokationException: Gradle build failed
 UnityEditor.Android.GradleWrapper.Run (UnityEditor.Android.AndroidJavaTools javaTools, System.String workingdir, System.String task, System.Action`1[T] progress) (at <8277255796414cc8b8865316c1676de5>:0)
 UnityEditor.Android.PostProcessor.Tasks.BuildGradleProject.Execute (UnityEditor.Android.PostProcessor.PostProcessorContext context) (at <8277255796414cc8b8865316c1676de5>:0)
 UnityEditor.Android.PostProcessor.PostProcessRunner.RunAllTasks (UnityEditor.Android.PostProcessor.PostProcessorContext context) (at <8277255796414cc8b8865316c1676de5>:0)
 Rethrow as BuildFailedException: Exception of type 'UnityEditor.Build.BuildFailedException' was thrown.
 UnityEditor.Android.PostProcessor.CancelPostProcess.AbortBuild (System.String title, System.String message, System.Exception ex) (at <8277255796414cc8b8865316c1676de5>:0)
 UnityEditor.Android.PostProcessor.PostProcessRunner.RunAllTasks (UnityEditor.Android.PostProcessor.PostProcessorContext context) (at <8277255796414cc8b8865316c1676de5>:0)
 UnityEditor.Android.PostProcessAndroidPlayer.PostProcess (UnityEditor.BuildTarget target, System.String stagingAreaData, System.String stagingArea, System.String playerPackage, System.String installPath, System.String companyName, System.String productName, UnityEditor.BuildOptions options, UnityEditor.RuntimeClassRegistry usedClassRegistry, UnityEditor.Build.Reporting.BuildReport report) (at <8277255796414cc8b8865316c1676de5>:0)
 UnityEditor.Android.AndroidBuildPostprocessor.PostProcess (UnityEditor.Modules.BuildPostProcessArgs args, UnityEditor.BuildProperties& outProperties) (at <8277255796414cc8b8865316c1676de5>:0)
 UnityEditor.PostprocessBuildPlayer.Postprocess (UnityEditor.BuildTargetGroup targetGroup, UnityEditor.BuildTarget target, System.String installPath, System.String companyName, System.String productName, System.Int32 width, System.Int32 height, UnityEditor.BuildOptions options, UnityEditor.RuntimeClassRegistry usedClassRegistry, UnityEditor.Build.Reporting.BuildReport report) (at C:/buildslave/unity/build/Editor/Mono/BuildPipeline/PostprocessBuildPlayer.cs:281)
 UnityEngine.GUIUtility:ProcessEvent(Int32, IntPtr)