Bug Problem in building project with Admob

The error occurred after installing Admob sdk and switching Scripting Backend (Project settings -> player -> Other settings / Configuration) to IL2CPP
Works on Mono, but G.Play does not accept
Error:
Building Library\Bee\artifacts\Android\ManagedStripped failed with output:
D:\cpp22_33\Unity Hub\2022.1.14f1\Editor\Data\il2cpp\build\deploy\UnityLinker.exe --search-directory=D:/Games/Unity/Kangaroo/Temp/StagingArea/Data/Managed --out=Library/Bee/artifacts/Android/ManagedStripped --include-link-xml=D:/Games/Unity/Kangaroo/Temp/StagingArea/Data/Managed\MethodsToPreserve.xml --include-link-xml=D:/Games/Unity/Kangaroo/Temp/StagingArea/Data/Managed\TypesInScenes.xml --include-link-xml=D:/Games/Unity/Kangaroo/Temp/StagingArea/Data/Managed\SerializedTypes.xml --include-link-xml=D:\Games\Unity\Kangaroo\Temp\burst.link.xml --include-link-xml=D:\Games\Unity\Kangaroo\Assets\GoogleMobileAds\link.xml --include-link-xml=D:/cpp22_33/Unity Hub/2022.1.14f1/Editor/Data/PlaybackEngines/AndroidPlayer/Tools/AndroidNativeLink.xml --include-directory=D:/Games/Unity/Kangaroo/Temp/StagingArea/Data/Managed --dotnetprofile=unityaot-linux --dotnetruntime=Il2Cpp --platform=Android --use-editor-options --enable-engine-module-stripping --engine-stripping-flag=EnableUnityConnect --engine-stripping-flag=EnablePerformanceReporting --engine-stripping-flag=EnableAnalytics --engine-modules-asset-file=D:/cpp22_33/Unity Hub/2022.1.14f1/Editor/Data/PlaybackEngines/AndroidPlayer/modules.asset --editor-data-file=D:/Games/Unity/Kangaroo/Temp/StagingArea/Data/Managed/EditorToUnityLinkerData.json --include-unity-root-assembly=D:/Games/Unity/Kangaroo/Temp/StagingArea/Data/Managed/Assembly-CSharp.dll --include-unity-root-assembly=D:/Games/Unity/Kangaroo/Temp/StagingArea/Data/Managed/UnityEngine.UI.dll --include-unity-root-assembly=D:/Games/Unity/Kangaroo/Temp/StagingArea/Data/Managed/UnityEngine.Purchasing.Codeless.dll --include-unity-root-assembly=D:/Games/Unity/Kangaroo/Temp/StagingArea/Data/Managed/GoogleMobileAds.Common.dll --print-command-line
Fatal error in Unity CIL Linker
Mono.Linker.LinkerFatalErrorException: ILLink: error IL1005: GoogleMobileAds.Api.MobileAds.GetClientFactory(): Error processing method 'GoogleMobileAds.Api.MobileAds.GetClientFactory()' in assembly 'GoogleMobileAds.dll'
---> System.InvalidOperationException: No action for the assembly GoogleMobileAds.Unity, Version=7.3.1.0, Culture=neutral, PublicKeyToken=null defined
at Mono.Linker.AnnotationStore.GetAction(AssemblyDefinition assembly)
at Mono.Linker.Steps.MarkStep.MarkCustomAttributes(ICustomAttributeProvider provider, DependencyInfo& reason, IMemberDefinition sourceLocationMember)
at Mono.Linker.Steps.MarkStep.MarkType(TypeReference reference, DependencyInfo reason, IMemberDefinition sourceLocationMember)
at Mono.Linker.Steps.MarkStep.MarkTypeVisibleToReflection(TypeReference reference, DependencyInfo reason, IMemberDefinition sourceLocationMember)
at Mono.Linker.Dataflow.ReflectionMethodBodyScanner.<>c__DisplayClass20_4.<HandleCa ll>b__7()
at Mono.Linker.Dataflow.ReflectionMethodBodyScanner.HandleCall(MethodBody callingMethodBody, MethodReference calledMethod, Instruction operation, ValueNodeList methodParams, ValueNode& methodReturnValue)
at Mono.Linker.Dataflow.MethodBodyScanner.HandleCall(MethodBody callingMethodBody, Instruction operation, Stack`1 currentStack)
at Mono.Linker.Dataflow.MethodBodyScanner.Scan(MethodBody methodBody)
at Mono.Linker.Dataflow.ReflectionMethodBodyScanner.ScanAndProcessReturnValue(Metho dBody methodBody)
at Unity.Linker.Steps.UnityMarkStep.MarkReflectionLikeDependencies(MethodBody body, Boolean requiresReflectionMethodBodyScanner)
at Mono.Linker.Steps.MarkStep.MarkMethodBody(MethodBody body)
at Unity.Linker.Steps.UnityMarkStep.MarkMethodBody(MethodBody body)
at Mono.Linker.Steps.MarkStep.ProcessMethod(MethodDefinition method, DependencyInfo& reason)
at Unity.Linker.Steps.UnityMarkStep.ProcessMethod(MethodDefinition method, DependencyInfo& reason)
at Mono.Linker.Steps.MarkStep.ProcessQueue()
--- End of inner exception stack trace ---
at Mono.Linker.Steps.MarkStep.ProcessQueue()
at Mono.Linker.Steps.MarkStep.ProcessPrimaryQueue()
at Mono.Linker.Steps.MarkStep.Process()
at Mono.Linker.Steps.MarkStep.Process(LinkContext context)
at Unity.Linker.Steps.UnityMarkStep.Process(LinkContext context)
at Unity.Linker.UnityPipeline.ProcessStep(LinkContext context, IStep step)
at Mono.Linker.Pipeline.Process(LinkContext context)
at Unity.Linker.UnityDriver.UnityRun(Boolean noProfilerAllowed, ILogger customLogger)
at Unity.Linker.UnityDriver.RunDriverWithoutErrorHandling(ILogger customLogger, Boolean noProfilerAllowed)
at Unity.Linker.UnityDriver.RunDriver()
UnityEngine.GUIUtilityrocessEvent (int,intptr,bool&)

 

It seems that the error is related to the IL2CPP backend not being able to process the GoogleMobileAds.Api.MobileAds.GetClientFactory() method in the assembly GoogleMobileAds.dll. The error message suggests that the GoogleMobileAds.Unity assembly is missing an action that is needed for the IL2CPP backend to process the method.
To fix this error, you may need to update the Google Mobile Ads SDK or try using a different version of the SDK that is compatible with the IL2CPP backend. You can also try removing and re-importing the SDK to see if that resolves the issue.
If the issue persists, you may need to reach out to the Google Mobile Ads support team for further assistance.