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AppLovin + MyTarget + Admob 7.2.0 Cannot build (Duplicate class)

See original GitHub issue

[REQUIRED] Step 1: Describe your environment

Unity version: Unity 2020.3.15f2
Google Mobile Ads Unity plugin version: 7.2.0
Platform: Editor => Android
Platform OS version: No build
Any specific devices issue occurs on: No build to deploy on devices
Mediation ad networks used, and their versions: Applovin v6.3.1 and MyTarget v3.11.3

[REQUIRED] Step 2: Describe the problem

Building with those mediations, API Level 33 and Admob Unity Plugin 7.2.0 results in the following error. I do not know why, or what I’m missing. I haven’t tested all the mediation permutations. But removing either of those results in a build being done. I noticed while upgrading to 7.2.0 that this error also happened (same output of Duplicate class but with other classes) while building 7.2.0 with no mediations AND an old version of Firebase (6.8.1), I Upgraded Firebase to 9.4.0 and the error was gone, so that was expected. After that I included the lastest version of our usual mediations and then this happened.

In the text wall bellow you can see “java.lang.RuntimeException: Duplicate class com.google.android.exoplayer2.ui.DownloadNotificationHelper found in modules jetified-exoplayer-core-2.17.1-runtime.jar (com.google.android.exoplayer:exoplayer-core:2.17.1) and jetified-exoplayer-ui-2.15.1-runtime.jar (com.google.android.exoplayer:exoplayer-ui:2.15.1)”

D:\STASH\googleads-mobile-unity\samples\HelloWorld\Temp\gradleOut\unityLibrary\src\main\java\com\unity3d\player\UnityPlayerActivity.java uses or overrides a deprecated API.
Note: Recompile with -Xlint:deprecation for details.
Could not load custom lint check jar file C:\Users\meche\.gradle\caches\transforms-2\files-2.1\37ff82037f3d1d42cd20a345d0752699\jetified-startup-runtime-1.1.1\jars\lint.jar
java.lang.NoClassDefFoundError: com/android/tools/lint/client/api/Vendor
	at androidx.startup.lint.StartupRuntimeIssueRegistry.<init>(StartupRuntimeIssueRegistry.kt:37)
	at sun.reflect.NativeConstructorAccessorImpl.newInstance0(Native Method)
	at sun.reflect.NativeConstructorAccessorImpl.newInstance(NativeConstructorAccessorImpl.java:62)
	at sun.reflect.DelegatingConstructorAccessorImpl.newInstance(DelegatingConstructorAccessorImpl.java:45)
	at java.lang.reflect.Constructor.newInstance(Constructor.java:423)
	at java.lang.Class.newInstance(Class.java:442)
	at com.android.tools.lint.client.api.JarFileIssueRegistry$Factory.loadIssueRegistry(JarFileIssueRegistry.kt:195)
	at com.android.tools.lint.client.api.JarFileIssueRegistry$Factory.get(JarFileIssueRegistry.kt:152)
	at com.android.tools.lint.client.api.JarFileIssueRegistry$Factory.get(JarFileIssueRegistry.kt:116)
	at com.android.tools.lint.client.api.LintDriver.registerCustomDetectors(LintDriver.kt:474)
	at com.android.tools.lint.client.api.LintDriver.analyze(LintDriver.kt:394)
	at com.android.tools.lint.LintCliClient.run(LintCliClient.kt:252)
	at com.android.tools.lint.gradle.LintGradleClient.run(LintGradleClient.java:299)
	at com.android.tools.lint.gradle.LintGradleExecution.runLint(LintGradleExecution.java:307)
	at com.android.tools.lint.gradle.LintGradleExecution.lintSingleVariant(LintGradleExecution.java:398)
	at com.android.tools.lint.gradle.LintGradleExecution.analyze(LintGradleExecution.java:96)
	at sun.reflect.GeneratedMethodAccessor978.invoke(Unknown Source)
	at sun.reflect.DelegatingMethodAccessorImpl.invoke(DelegatingMethodAccessorImpl.java:43)
	at java.lang.reflect.Method.invoke(Method.java:498)
	at com.android.tools.lint.gradle.api.ReflectiveLintRunner.runLint(ReflectiveLintRunner.kt:38)
	at com.android.build.gradle.tasks.LintBaseTask.runLint(LintBaseTask.java:114)
	at com.android.build.gradle.tasks.LintPerVariantTask.lint(LintPerVariantTask.java:64)
	at sun.reflect.GeneratedMethodAccessor977.invoke(Unknown Source)
	at sun.reflect.DelegatingMethodAccessorImpl.invoke(DelegatingMethodAccessorImpl.java:43)
	at java.lang.reflect.Method.invoke(Method.java:498)
	at org.gradle.internal.reflect.JavaMethod.invoke(JavaMethod.java:104)
	at org.gradle.api.internal.project.taskfactory.StandardTaskAction.doExecute(StandardTaskAction.java:58)
	at org.gradle.api.internal.project.taskfactory.StandardTaskAction.execute(StandardTaskAction.java:51)
	at org.gradle.api.internal.project.taskfactory.StandardTaskAction.execute(StandardTaskAction.java:29)
	at org.gradle.api.internal.tasks.execution.ExecuteActionsTaskExecuter$3.run(ExecuteActionsTaskExecuter.java:555)
	at org.gradle.internal.operations.DefaultBuildOperationRunner$1.execute(DefaultBuildOperationRunner.java:29)
	at org.gradle.internal.operations.DefaultBuildOperationRunner$1.execute(DefaultBuildOperationRunner.java:26)
	at org.gradle.internal.operations.DefaultBuildOperationRunner$3.execute(DefaultBuildOperationRunner.java:75)
	at org.gradle.internal.operations.DefaultBuildOperationRunner$3.execute(DefaultBuildOperationRunner.java:68)
	at org.gradle.internal.operations.DefaultBuildOperationRunner.execute(DefaultBuildOperationRunner.java:153)
	at org.gradle.internal.operations.DefaultBuildOperationRunner.execute(DefaultBuildOperationRunner.java:68)
	at org.gradle.internal.operations.DefaultBuildOperationRunner.run(DefaultBuildOperationRunner.java:56)
	at org.gradle.internal.operations.DefaultBuildOperationExecutor.lambda$run$1(DefaultBuildOperationExecutor.java:71)
	at org.gradle.internal.operations.UnmanagedBuildOperationWrapper.runWithUnmanagedSupport(UnmanagedBuildOperationWrapper.java:45)
	at org.gradle.internal.operations.DefaultBuildOperationExecutor.run(DefaultBuildOperationExecutor.java:71)
	at org.gradle.api.internal.tasks.execution.ExecuteActionsTaskExecuter.executeAction(ExecuteActionsTaskExecuter.java:540)
	at org.gradle.api.internal.tasks.execution.ExecuteActionsTaskExecuter.executeActions(ExecuteActionsTaskExecuter.java:523)
	at org.gradle.api.internal.tasks.execution.ExecuteActionsTaskExecuter.access$300(ExecuteActionsTaskExecuter.java:108)
	at org.gradle.api.internal.tasks.execution.ExecuteActionsTaskExecuter$TaskExecution.executeWithPreviousOutputFiles(ExecuteActionsTaskExecuter.java:271)
	at org.gradle.api.internal.tasks.execution.ExecuteActionsTaskExecuter$TaskExecution.execute(ExecuteActionsTaskExecuter.java:260)
	at org.gradle.internal.execution.steps.ExecuteStep.lambda$execute$1(ExecuteStep.java:34)
	at java.util.Optional.orElseGet(Optional.java:267)
	at org.gradle.internal.execution.steps.ExecuteStep.execute(ExecuteStep.java:34)
	at org.gradle.internal.execution.steps.ExecuteStep.execute(ExecuteStep.java:26)
	at org.gradle.internal.execution.steps.CleanupOutputsStep.execute(CleanupOutputsStep.java:67)
	at org.gradle.internal.execution.steps.CleanupOutputsStep.execute(CleanupOutputsStep.java:36)
	at org.gradle.internal.execution.steps.ResolveInputChangesStep.execute(ResolveInputChangesStep.java:49)
	at org.gradle.internal.execution.steps.ResolveInputChangesStep.execute(ResolveInputChangesStep.java:34)
	at org.gradle.internal.execution.steps.CancelExecutionStep.execute(CancelExecutionStep.java:43)
	at org.gradle.internal.execution.steps.TimeoutStep.executeWithoutTimeout(TimeoutStep.java:73)
	at org.gradle.internal.execution.steps.TimeoutStep.execute(TimeoutStep.java:54)
	at org.gradle.internal.execution.steps.CreateOutputsStep.execute(CreateOutputsStep.java:44)
	at org.gradle.internal.execution.steps.SnapshotOutputsStep.execute(SnapshotOutputsStep.java:54)
	at org.gradle.internal.execution.steps.SnapshotOutputsStep.execute(SnapshotOutputsStep.java:38)
	at org.gradle.internal.execution.steps.BroadcastChangingOutputsStep.execute(BroadcastChangingOutputsStep.java:42)
	at org.gradle.internal.execution.steps.CacheStep.executeWithoutCache(CacheStep.java:159)
	at org.gradle.internal.execution.steps.CacheStep.execute(CacheStep.java:72)
	at org.gradle.internal.execution.steps.CacheStep.execute(CacheStep.java:43)
	at org.gradle.internal.execution.steps.StoreExecutionStateStep.execute(StoreExecutionStateStep.java:44)
	at org.gradle.internal.execution.steps.StoreExecutionStateStep.execute(StoreExecutionStateStep.java:33)
	at org.gradle.internal.execution.steps.RecordOutputsStep.execute(RecordOutputsStep.java:38)
	at org.gradle.internal.execution.steps.RecordOutputsStep.execute(RecordOutputsStep.java:24)
	at org.gradle.internal.execution.steps.SkipUpToDateStep.executeBecause(SkipUpToDateStep.java:92)
	at org.gradle.internal.execution.steps.SkipUpToDateStep.lambda$execute$0(SkipUpToDateStep.java:85)
	at java.util.Optional.map(Optional.java:215)
	at org.gradle.internal.execution.steps.SkipUpToDateStep.execute(SkipUpToDateStep.java:55)
	at org.gradle.internal.execution.steps.SkipUpToDateStep.execute(SkipUpToDateStep.java:39)
	at org.gradle.internal.execution.steps.ResolveChangesStep.execute(ResolveChangesStep.java:76)
	at org.gradle.internal.execution.steps.ResolveChangesStep.execute(ResolveChangesStep.java:37)
	at org.gradle.internal.execution.steps.legacy.MarkSnapshottingInputsFinishedStep.execute(MarkSnapshottingInputsFinishedStep.java:36)
	at org.gradle.internal.execution.steps.legacy.MarkSnapshottingInputsFinishedStep.execute(MarkSnapshottingInputsFinishedStep.java:26)
	at org.gradle.internal.execution.steps.ResolveCachingStateStep.execute(ResolveCachingStateStep.java:94)
	at org.gradle.internal.execution.steps.ResolveCachingStateStep.execute(ResolveCachingStateStep.java:49)
	at org.gradle.internal.execution.steps.CaptureStateBeforeExecutionStep.execute(CaptureStateBeforeExecutionStep.java:79)
	at org.gradle.internal.execution.steps.CaptureStateBeforeExecutionStep.execute(CaptureStateBeforeExecutionStep.java:53)
	at org.gradle.internal.execution.steps.ValidateStep.execute(ValidateStep.java:74)
	at org.gradle.internal.execution.steps.SkipEmptyWorkStep.lambda$execute$2(SkipEmptyWorkStep.java:78)
	at java.util.Optional.orElseGet(Optional.java:267)
	at org.gradle.internal.execution.steps.SkipEmptyWorkStep.execute(SkipEmptyWorkStep.java:78)
	at org.gradle.internal.execution.steps.SkipEmptyWorkStep.execute(SkipEmptyWorkStep.java:34)
	at org.gradle.internal.execution.steps.legacy.MarkSnapshottingInputsStartedStep.execute(MarkSnapshottingInputsStartedStep.java:39)
	at org.gradle.internal.execution.steps.LoadExecutionStateStep.execute(LoadExecutionStateStep.java:40)
	at org.gradle.internal.execution.steps.LoadExecutionStateStep.execute(LoadExecutionStateStep.java:28)
	at org.gradle.internal.execution.impl.DefaultWorkExecutor.execute(DefaultWorkExecutor.java:33)
	at org.gradle.api.internal.tasks.execution.ExecuteActionsTaskExecuter.executeIfValid(ExecuteActionsTaskExecuter.java:187)
	at org.gradle.api.internal.tasks.execution.ExecuteActionsTaskExecuter.execute(ExecuteActionsTaskExecuter.java:179)
	at org.gradle.api.internal.tasks.execution.CleanupStaleOutputsExecuter.execute(CleanupStaleOutputsExecuter.java:109)
	at org.gradle.api.internal.tasks.execution.FinalizePropertiesTaskExecuter.execute(FinalizePropertiesTaskExecuter.java:46)
	at org.gradle.api.internal.tasks.execution.ResolveTaskExecutionModeExecuter.execute(ResolveTaskExecutionModeExecuter.java:62)
	at org.gradle.api.internal.tasks.execution.SkipTaskWithNoActionsExecuter.execute(SkipTaskWithNoActionsExecuter.java:57)
	at org.gradle.api.internal.tasks.execution.SkipOnlyIfTaskExecuter.execute(SkipOnlyIfTaskExecuter.java:56)
	at org.gradle.api.internal.tasks.execution.CatchExceptionTaskExecuter.execute(CatchExceptionTaskExecuter.java:36)
	at org.gradle.api.internal.tasks.execution.EventFiringTaskExecuter$1.executeTask(EventFiringTaskExecuter.java:77)
	at org.gradle.api.internal.tasks.execution.EventFiringTaskExecuter$1.call(EventFiringTaskExecuter.java:55)
	at org.gradle.api.internal.tasks.execution.EventFiringTaskExecuter$1.call(EventFiringTaskExecuter.java:52)
	at org.gradle.internal.operations.DefaultBuildOperationRunner$CallableBuildOperationWorker.execute(DefaultBuildOperationRunner.java:200)
	at org.gradle.internal.operations.DefaultBuildOperationRunner$CallableBuildOperationWorker.execute(DefaultBuildOperationRunner.java:195)
	at org.gradle.internal.operations.DefaultBuildOperationRunner$3.execute(DefaultBuildOperationRunner.java:75)
	at org.gradle.internal.operations.DefaultBuildOperationRunner$3.execute(DefaultBuildOperationRunner.java:68)
	at org.gradle.internal.operations.DefaultBuildOperationRunner.execute(DefaultBuildOperationRunner.java:153)
	at org.gradle.internal.operations.DefaultBuildOperationRunner.execute(DefaultBuildOperationRunner.java:68)
	at org.gradle.internal.operations.DefaultBuildOperationRunner.call(DefaultBuildOperationRunner.java:62)
	at org.gradle.internal.operations.DefaultBuildOperationExecutor.lambda$call$2(DefaultBuildOperationExecutor.java:76)
	at org.gradle.internal.operations.UnmanagedBuildOperationWrapper.callWithUnmanagedSupport(UnmanagedBuildOperationWrapper.java:54)
	at org.gradle.internal.operations.DefaultBuildOperationExecutor.call(DefaultBuildOperationExecutor.java:76)
	at org.gradle.api.internal.tasks.execution.EventFiringTaskExecuter.execute(EventFiringTaskExecuter.java:52)
	at org.gradle.execution.plan.LocalTaskNodeExecutor.execute(LocalTaskNodeExecutor.java:41)
	at org.gradle.execution.taskgraph.DefaultTaskExecutionGraph$InvokeNodeExecutorsAction.execute(DefaultTaskExecutionGraph.java:372)
	at org.gradle.execution.taskgraph.DefaultTaskExecutionGraph$InvokeNodeExecutorsAction.execute(DefaultTaskExecutionGraph.java:359)
	at org.gradle.execution.taskgraph.DefaultTaskExecutionGraph$BuildOperationAwareExecutionAction.execute(DefaultTaskExecutionGraph.java:352)
	at org.gradle.execution.taskgraph.DefaultTaskExecutionGraph$BuildOperationAwareExecutionAction.execute(DefaultTaskExecutionGraph.java:338)
	at org.gradle.execution.plan.DefaultPlanExecutor$ExecutorWorker.lambda$run$0(DefaultPlanExecutor.java:127)
	at org.gradle.execution.plan.DefaultPlanExecutor$ExecutorWorker.execute(DefaultPlanExecutor.java:191)
	at org.gradle.execution.plan.DefaultPlanExecutor$ExecutorWorker.executeNextNode(DefaultPlanExecutor.java:182)
	at org.gradle.execution.plan.DefaultPlanExecutor$ExecutorWorker.run(DefaultPlanExecutor.java:124)
	at org.gradle.internal.concurrent.ExecutorPolicy$CatchAndRecordFailures.onExecute(ExecutorPolicy.java:64)
	at org.gradle.internal.concurrent.ManagedExecutorImpl$1.run(ManagedExecutorImpl.java:48)
	at java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1149)
	at java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:624)
	at org.gradle.internal.concurrent.ThreadFactoryImpl$ManagedThreadRunnable.run(ThreadFactoryImpl.java:56)
	at java.lang.Thread.run(Thread.java:748)
Caused by: java.lang.ClassNotFoundException: com.android.tools.lint.client.api.Vendor
	at com.intellij.util.lang.UrlClassLoader.findClass(UrlClassLoader.java:307)
	at java.lang.ClassLoader.loadClass(ClassLoader.java:424)
	at java.lang.ClassLoader.loadClass(ClassLoader.java:357)
	... 126 more
FAILURE: Build failed with an exception.
* What went wrong:
Execution failed for task ':launcher:checkReleaseDuplicateClasses'.
> 1 exception was raised by workers:
  java.lang.RuntimeException: Duplicate class com.google.android.exoplayer2.ui.DownloadNotificationHelper found in modules jetified-exoplayer-core-2.17.1-runtime.jar (com.google.android.exoplayer:exoplayer-core:2.17.1) and jetified-exoplayer-ui-2.15.1-runtime.jar (com.google.android.exoplayer:exoplayer-ui:2.15.1)