[Unity] Stopped polling job due to exception 에러

안녕하세요.

Player Settings에서 Target API Level을 API level 29로 설정을 한 후 GoolglePlayServices에서 오류가 발생되었습니다.

 

다음 에러입니다.

Stopped polling job due to exception: System.NullReferenceException: Object reference not set to an instance of an object
  at GooglePlayServices.UnityCompat.VersionFromAndroidSDKVersionsEnum (System.String enumName, System.String fallbackPrefKey, System.Int32 fallbackValue) [0x00000] in /Users/smiles/dev/src/unity-jar-resolver/source/PlayServicesResolver/src/UnityCompat.cs:58 
  at GooglePlayServices.UnityCompat.GetAndroidTargetSDKVersion () [0x00015] in /Users/smiles/dev/src/unity-jar-resolver/source/PlayServicesResolver/src/UnityCompat.cs:116 
  at GooglePlayServices.PlayServicesResolver.CanEnableJetifierOrPromptUser (System.String titlePrefix) [0x000ae] in /Users/smiles/dev/src/unity-jar-resolver/source/PlayServicesResolver/src/PlayServicesResolver.cs:2314 
  at GooglePlayServices.PlayServicesResolver.ResolveUnsafe (System.Action`1[T] resolutionComplete, System.Boolean forceResolution, System.Boolean isAutoResolveJob, System.Boolean closeWindowOnCompletion) [0x00014] in /Users/smiles/dev/src/unity-jar-resolver/source/PlayServicesResolver/src/PlayServicesResolver.cs:1635 
  at GooglePlayServices.PlayServicesResolver+<ScheduleResolve>c__AnonStorey1E.<>m__3F () [0x00000] in /Users/smiles/dev/src/unity-jar-resolver/source/PlayServicesResolver/src/PlayServicesResolver.cs:1604 
  at GooglePlayServices.PlayServicesResolver.ExecuteNextResolveJob () [0x00069] in /Users/smiles/dev/src/unity-jar-resolver/source/PlayServicesResolver/src/PlayServicesResolver.cs:1461 
  at GooglePlayServices.PlayServicesResolver.ScheduleResolve (System.Boolean forceResolution, System.Boolean closeWindowOnCompletion, System.Action`1[T] resolutionCompleteWithResult, System.Boolean isAutoResolveJob) [0x000a7] in /Users/smiles/dev/src/unity-jar-resolver/source/PlayServicesResolver/src/PlayServicesResolver.cs:1617 
  at GooglePlayServices.PlayServicesResolver.AutoResolve (System.Action resolutionComplete) [0x00017] in /Users/smiles/dev/src/unity-jar-resolver/source/PlayServicesResolver/src/PlayServicesResolver.cs:1134 
  at GooglePlayServices.PlayServicesResolver.<ScheduleAutoResolve>m__47 () [0x00016] in /Users/smiles/dev/src/unity-jar-resolver/source/PlayServicesResolver/src/PlayServicesResolver.cs:1113 
  at Google.RunOnMainThread.ExecutePollingJobs () [0x0004a] in /Users/smiles/dev/src/unity-jar-resolver/source/VersionHandlerImpl/src/RunOnMainThread.cs:300 
UnityEngine.Debug:LogError(Object)
Google.RunOnMainThread:ExecutePollingJobs() (at /Users/smiles/dev/src/unity-jar-resolver/source/VersionHandlerImpl/src/RunOnMainThread.cs:303)
Google.RunOnMainThread:<ExecuteAll>m__A() (at /Users/smiles/dev/src/unity-jar-resolver/source/VersionHandlerImpl/src/RunOnMainThread.cs:414)
Google.RunOnMainThread:RunAction(Action) (at /Users/smiles/dev/src/unity-jar-resolver/source/VersionHandlerImpl/src/RunOnMainThread.cs:234)
Google.RunOnMainThread:ExecuteAll() (at /Users/smiles/dev/src/unity-jar-resolver/source/VersionHandlerImpl/src/RunOnMainThread.cs:406)
UnityEditor.EditorApplication:Internal_CallUpdateFunctions() (at C:/buildslave/unity/build/Editor/Mono/EditorApplication.cs:303)

검색을 해보니, Play Services Resolver를 업데이트 해야 해결된다고 합니다.

 

이리저리해보다가 안되서... API level 28로 낮춘 후 재시작하고, 다시 타겟 API 레벨을 상위로 올렸습니다.

 

근본적인 문제해결하면 다시 올리겠습니다.