Error packaging project: level too big


I have a problem when I make the package of my project. The error is (in my opinion):

  • Fatal error: [File:D:\BuildFarm\buildmachine_++UE4+Release-4.11\Engine\Source\Runtime\Core\Public\Serialization\Archive.h] [Line: 96]
    MainFrameActions: Packaging (Windows (64-bit)): UE4Editor-Cmd: FMemoryWriter does not support data larger than 2GB. Archive name: D:/UnrealProyects/SFProjectVR/Content/Maps/MainLevel.umap.

But my level is not too big, it size is about 800mb.

Lightmaps compress is enabled
Num indirect lighting bounces is 1
packed shadow map and lightmaps texture size is 512
And my level has a lot of objects but is not really a big level

I’m stuck with this issue… any tip?