Bug IL2CPP GenericSharingVisitor.Process - NotImplementedException

I'm using LTS 2021.3.15f1. Also happens on 3.14f1. I'm getting NotImplementedException - The method or operation is not implemented from IL2CPP GenericSharingVisitor. The call site for the exception changes each time I attempt a build. The exception is thrown from both user code and Unity package code.

Unity Bug Portal IN-25812

I'm unable to create builds of my game. Is there a known workaround?

2021.3.15f1\Editor\Data\il2cpp\build\deploy\il2cpp.exe @Library\Bee\artifacts\rsp\4115519617908147460.rsp

Error: IL2CPP error for type 'UnityEngine.XR.InputDeviceCharacteristics' in assembly

 'C:\Source\Library\Bee\artifacts\WinPlayerBuildProgram\ManagedStripped\UnityEngine.XRModule.dll'

System.NotImplementedException: The method or operation is not implemented.

at Unity.IL2CPP.GenericSharing.GenericSharingVisitor.Process(Instruction instruction, MethodDefinition method, Boolean fullGenericSharing)

 

Build Attempt #1

C:\Program Files\Unity\Hub\Editor\2021.3.15f1\Editor\Data\il2cpp\build\deploy\il2cpp.exe @Library\Bee\artifacts\rsp\4115519617908147460.rsp

Error: IL2CPP error for method 'System.String CI.HttpClient.Helpers.AuthHelper::CreateOAuth2Header(System.String)' in C:/Source/XXX/XXX/Assets/Plugins/HttpClient/Helpers/AuthHelper.cs:24

System.NotImplementedException: The method or operation is not implemented.

   at Unity.IL2CPP.GenericSharing.GenericSharingVisitor.Process(Instruction instruction, MethodDefinition method, Boolean fullGenericSharing)

   at Unity.IL2CPP.GenericSharing.GenericSharingVisitor.ProcessType(TypeDefinition type)

   at Unity.IL2CPP.GenericSharing.GenericSharingVisitor.Collect(AssemblyDefinition assembly)

   at Unity.IL2CPP.AssemblyConversion.PrimaryCollection.Steps.Global.GenericSharingAnalysis.ProcessItem(GlobalPrimaryCollectionContext context, AssemblyDefinition item)

   at Unity.IL2CPP.AssemblyConversion.Steps.Base.ScheduledItemsStepFuncWithContinueFunc`4.WorkerWrapper(WorkItemData`3 workerData)

   at Unity.IL2CPP.Contexts.Scheduling.PhaseWorkScheduler`1.ContinueWithResultsWorkItem`4.InvokeWorker(Object context, Int32 uniqueId)

   at Unity.IL2CPP.Contexts.Scheduling.PhaseWorkScheduler`1.BaseContinueWorkItem`2.Invoke(Object context, Int32 uniqueId)

   at Unity.IL2CPP.Contexts.Scheduling.PhaseWorkScheduler`1.WorkerLoop(Object data)

AuthHelper.cs Line 24

public static string CreateOAuth2Header(string token)

{

   return "Bearer " + token; // line 24

}

 

Build Attempt #2

C:\Program Files\Unity\Hub\Editor\2021.3.15f1\Editor\Data\il2cpp\build\deploy\il2cpp.exe @Library\Bee\artifacts\rsp\4115519617908147460.rsp

Error: IL2CPP error for method 'Steamworks.Data.SNetSocket_t Steamworks.ISteamNetworking::CreateP2PConnectionSocket(Steamworks.SteamId,System.Int32,System.Int32,System.Boolean)' in assembly 'C:\Source\XXX\XXX\Library\Bee\artifacts\WinPlayerBuildProgram\ManagedStripped\Facepunch.Steamworks.Win64.dll'

System.NotImplementedException: The method or operation is not implemented.

   at Unity.IL2CPP.GenericSharing.GenericSharingVisitor.Process(Instruction instruction, MethodDefinition method, Boolean fullGenericSharing)

   at Unity.IL2CPP.GenericSharing.GenericSharingVisitor.ProcessType(TypeDefinition type)

   at Unity.IL2CPP.GenericSharing.GenericSharingVisitor.Collect(AssemblyDefinition assembly)

   at Unity.IL2CPP.AssemblyConversion.PrimaryCollection.Steps.Global.GenericSharingAnalysis.ProcessItem(GlobalPrimaryCollectionContext context, AssemblyDefinition item)

   at Unity.IL2CPP.AssemblyConversion.Steps.Base.ScheduledItemsStepFuncWithContinueFunc`4.WorkerWrapper(WorkItemData`3 workerData)

   at Unity.IL2CPP.Contexts.Scheduling.PhaseWorkScheduler`1.ContinueWithResultsWorkItem`4.InvokeWorker(Object context, Int32 uniqueId)

   at Unity.IL2CPP.Contexts.Scheduling.PhaseWorkScheduler`1.BaseContinueWorkItem`2.Invoke(Object context, Int32 uniqueId)

   at Unity.IL2CPP.Contexts.Scheduling.PhaseWorkScheduler`1.WorkerLoop(Object data)

UnityEngine.GUIUtility:ProcessEvent (int,intptr,bool&)

 

Build Attempt #3

C:\Program Files\Unity\Hub\Editor\2021.3.15f1\Editor\Data\il2cpp\build\deploy\il2cpp.exe @Library\Bee\artifacts\rsp\4115519617908147460.rsp

Error: IL2CPP error for method 'System.Void Newtonsoft.Json.Utilities.DynamicProxy`1::.ctor()' in /root/repo/Src/Newtonsoft.Json/Utilities/DynamicProxy.cs:36

System.NotImplementedException: The method or operation is not implemented.

   at Unity.IL2CPP.GenericSharing.GenericSharingVisitor.Process(Instruction instruction, MethodDefinition method, Boolean fullGenericSharing)

   at Unity.IL2CPP.GenericSharing.GenericSharingVisitor.ProcessType(TypeDefinition type)

   at Unity.IL2CPP.GenericSharing.GenericSharingVisitor.Collect(AssemblyDefinition assembly)

   at Unity.IL2CPP.AssemblyConversion.PrimaryCollection.Steps.Global.GenericSharingAnalysis.ProcessItem(GlobalPrimaryCollectionContext context, AssemblyDefinition item)

   at Unity.IL2CPP.AssemblyConversion.Steps.Base.ScheduledItemsStepFuncWithContinueFunc`4.WorkerWrapper(WorkItemData`3 workerData)

   at Unity.IL2CPP.Contexts.Scheduling.PhaseWorkScheduler`1.ContinueWithResultsWorkItem`4.InvokeWorker(Object context, Int32 uniqueId)

   at Unity.IL2CPP.Contexts.Scheduling.PhaseWorkScheduler`1.BaseContinueWorkItem`2.Invoke(Object context, Int32 uniqueId)

   at Unity.IL2CPP.Contexts.Scheduling.PhaseWorkScheduler`1.WorkerLoop(Object data)

UnityEngine.GUIUtility:ProcessEvent (int,intptr,bool&)

 

Build Attempt #4. Failure location originates from Unity package code.

C:\Program Files\Unity\Hub\Editor\2021.3.15f1\Editor\Data\il2cpp\build\deploy\il2cpp.exe @Library\Bee\artifacts\rsp\4115519617908147460.rsp

Error: IL2CPP error for type 'UnityEngine.XR.InputDeviceCharacteristics' in assembly 'C:\Source\XXX\XXX\Library\Bee\artifacts\WinPlayerBuildProgram\ManagedStripped\UnityEngine.XRModule.dll'

System.NotImplementedException: The method or operation is not implemented.

   at Unity.IL2CPP.GenericSharing.GenericSharingVisitor.Process(Instruction instruction, MethodDefinition method, Boolean fullGenericSharing)

   at Unity.IL2CPP.GenericSharing.GenericSharingVisitor.ProcessType(TypeDefinition type)

   at Unity.IL2CPP.GenericSharing.GenericSharingVisitor.Collect(AssemblyDefinition assembly)

   at Unity.IL2CPP.AssemblyConversion.PrimaryCollection.Steps.Global.GenericSharingAnalysis.ProcessItem(GlobalPrimaryCollectionContext context, AssemblyDefinition item)

   at Unity.IL2CPP.AssemblyConversion.Steps.Base.ScheduledItemsStepFuncWithContinueFunc`4.WorkerWrapper(WorkItemData`3 workerData)

   at Unity.IL2CPP.Contexts.Scheduling.PhaseWorkScheduler`1.ContinueWithResultsWorkItem`4.InvokeWorker(Object context, Int32 uniqueId)

   at Unity.IL2CPP.Contexts.Scheduling.PhaseWorkScheduler`1.BaseContinueWorkItem`2.Invoke(Object context, Int32 uniqueId)

   at Unity.IL2CPP.Contexts.Scheduling.PhaseWorkScheduler`1.WorkerLoop(Object data)

UnityEngine.GUIUtility:ProcessEvent (int,intptr,bool&)

 

Thank you!

 

FWIW, I am also seeing this in 2022.2.1f1.

 

Since the issue manifests across two versions of Unity separated by a year, I'm inclined to think there is an environmental cause. I installed older versions of the Windows SDK, as well as VC++ libraries thinking it is a version compat issue. Unfortunately, this didn't remedy the issue. I am really needing to get a build out. Is there anything I can try?

 

RE: related. Feature preview: IL2CPP Full Generic Sharing in Unity 2022.1 beta | Unity Blog

 

Tried:

Preferences -> Diagnostics -> Editor -> VMIl2CppAditionalArgs --disable-generic-sharing
and
Project Settings-> IL2CPP Code Generation -> Faster (smaller) Builds

I wonder what other settings besides --disable-generic-sharing that might be worth trying...

 

Thank you for following up. I tried with both build options (smaller vs faster) and I see the same behavior. I’m open to trying anything — I’m out of ideas.

 

@JoshPeterson I'm working to get a reduced size project sent over. I'm starting at over 100GB, and it is taking some time. In the interim, I asked the Customer QA team if they could review source for GenericSharingVisitor.Process and advise what scenarios cause a NotImplementedException to be thrown.

 

Thanks Josh! I updated the ticket with a download link to a project (1.3GB) which reproduces the issue in my environment.

 

I appreciate all of your help. Do you know if a work-around might exist? I'm very much hoping to produce a build. The 2021 and 2022 Unity versions seem to have the same behavior.

 

kk. Would it help to send a direct link to the repro project? Separately, I'm ready to run a debug DLL and share diagnostic output. I haven't been able to produce a build for over a month and I don't know which line of C# code is tripping up GenericSharingVisitor due to the incorrect stack tracing.