4.12.5 Hotfix for Instance Base Cache (Foliage) Issues

Development World Creation
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1

I’m sure the staff is aware enough as it is to the this issue at hand. I’ve found so many questions here on this site and very limited if not very unhelpful answers depending on the cases.

My project is source built on 4.12.5. Switching to 4.13 is a big issue as it breaks all the plugins currently required for the game.

With that said, I took the suggestion to apply the Hotfix to the build. Link: https://github.com/EpicGames/UnrealEngine/commit/bac67b96d7f1d4323db570c6a0485cdfb0414c23

The issue i’m having when I send the engine to rebuild is the fact it it is saying that the function “FArchive& FDuplicateDataReader::operator” is overloaded but its not found. This appended code comes from the DuplicateDataReader.cpp change.

How does one solve this issue?

I have a short deadline to submit a beta to my publisher in two weeks and need to get this resolved. Thanks!

-Stuart

2

Hey sbnewsom,

My understanding is that you only need to change:

UE_LOG(LogInstancedFoliage, Fatal, TEXT("Instance base cache - integrity verification(2): Counter: %d Size: %d, InvSize: %d, BaseUID: %s, BaseName: %s"), (int32)BaseId, InstanceBaseMap.Num(), InstanceBaseInvMap.Num(), *BaseUID.ToString(), *InComponent->GetFullName());

To:

UE_LOG(LogInstancedFoliage, Error, TEXT("Instance base cache - integrity verification(2): Counter: %d Size: %d, InvSize: %d, BaseUID: %s, BaseName: %s"), (int32)BaseId, InstanceBaseMap.Num(), InstanceBaseInvMap.Num(), *BaseUID.ToString(), *InComponent->GetFullName());

(Essentially, change “Fatal” to “Error” in the UE_LOG)

Let me know if that doesn’t work.