Question Standalone InvalidOperationException on launch

I'm getting an InvalidOperationException in the Unity loading screen in standalone builds only.

InvalidOperationException: Could not execute the method because the containing type is not fully instantiated.

It happens before any code in my project executes, as far as I can tell. There is no stack trace, just the above line in the player log.

I tried attaching a debugger to the standalone app and saw this in the console:

ERROR: Exception during construction of EventSource System.Collections. Concurrent.ConcurrentCollectionsEventSource

I searched for this and found a link about newtonsoft.json causing this in Unity in some cases: https://github.com/AzureAD/microsoft-authentication-library-for-dotnet/issues/1812

If anyone has any ideas how to further debug this or things to try I'd appreciate any help.

This thread can be moved if it's not DOTs related. I'm not sure where best to post but it's only happening in my DOTs project when building from the new platform buildconfig asset.

 

In case it helps anyone in the future; I fixed this by disabling a generic singletons fast enter playmode static initialisation function.

I wrapped the below in #if UNITY_EDITOR.

[RuntimeInitializeOnLoadMethod (RuntimeInitializeLoadType.SubsystemRegistration)]

static void FastEnterPlaymodeInit ()

{

m_ShuttingDown = false;

m_Lock = new object ();

m_Instance = null;

}

 

Thank you! Saved my time

Code (CSharp):

1. #if UNITY_EDITOR
2.         [RuntimeInitializeOnLoadMethod(RuntimeInitializeLoadType.SubsystemRegistration)]
3.         protected static void ResetSubsystem()
4.         {
5.             _instance = null;
6.         }
7. #endif

 

Would you like to explain the meaning of subsystem registration? The manual was crude