Reproduction steps:
1. Open the attached “BugRepro” project
2. Click Edit > Project Settings > Publishing settings > Disable Custom Keystore
3. Click File > Build

Expected result: Build finishes successfully
Actual result: Build freezes

Reproducible with: 2020.3.48f1, 2021.3.25f1, 2022.2.20f1
Couldn’t test with: 2023.1.0a1 (Failed to update Android SDK package list.), 2023.1.0b17, 2023.2.0a1, 2023.2.0a15 (UUM-35706: Build fails with com.android.build.gradle.internal.tasks.CheckDuplicatesRunnable error)

Reproducible on: Windows 10, Ubuntu 22.10

Notes:

• When opening the project, this NullReferenceException is shown:

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) [0x00001] in <48abf529805a49c69e88ffb3f8b573e9>:0
at GooglePlayServices.UnityCompat.GetAndroidTargetSDKVersion () [0x00036] in <48abf529805a49c69e88ffb3f8b573e9>:0
at GooglePlayServices.PlayServicesResolver.CanEnableJetifierOrPromptUser (System.String titlePrefix) [0x000b0] in <48abf529805a49c69e88ffb3f8b573e9>:0
at GooglePlayServices.PlayServicesResolver.ResolveUnsafe (System.Action`1[T] resolutionComplete, System.Boolean forceResolution, System.Boolean isAutoResolveJob, System.Boolean closeWindowOnCompletion) [0x00014] in <48abf529805a49c69e88ffb3f8b573e9>:0
at GooglePlayServices.PlayServicesResolver+<>c_{_}DisplayClass102_0.<ScheduleResolve>b{_}_1 () [0x0001f] in <48abf529805a49c69e88ffb3f8b573e9>:0
at GooglePlayServices.PlayServicesResolver.ExecuteNextResolveJob () [0x00073] in <48abf529805a49c69e88ffb3f8b573e9>:0
at GooglePlayServices.PlayServicesResolver.ScheduleResolve (System.Boolean forceResolution, System.Boolean closeWindowOnCompletion, System.Action`1[T] resolutionCompleteWithResult, System.Boolean isAutoResolveJob) [0x000ac] in <48abf529805a49c69e88ffb3f8b573e9>:0
at GooglePlayServices.PlayServicesResolver.AutoResolve (System.Action resolutionComplete) [0x00018] in <48abf529805a49c69e88ffb3f8b573e9>:0
at GooglePlayServices.PlayServicesResolver+<>c.<ScheduleAutoResolve>b__78_1 () [0x00024] in <48abf529805a49c69e88ffb3f8b573e9>:0
at Google.RunOnMainThread.ExecutePollingJobs () [0x00052] in <ac8e755fbc27434ebdaf117e2c7041d9>:0
UnityEngine.Debug:LogError (object)
Google.RunOnMainThread:ExecutePollingJobs ()
Google.RunOnMainThread/<>c:<ExecuteAll>b__24_0 ()
Google.RunOnMainThread:RunAction (System.Action)
Google.RunOnMainThread:ExecuteAll ()
UnityEditor.EditorApplication:Internal_CallUpdateFunctions ()

• Didn’t test other 2023.1 versions because of the long build time