FMemoryWriter does not support data larger than 2GB

Can you split it up into sub-levels? It’s hard to give a solution without knowing what you’re trying to accomplish with such a large map.

how may i deal with it ?

Fatal error: [File:D:\ue4\UnrealEngine\Engine\Source\Runtime\Core\Public\Serialization\Archive.h] [Line: 96] 
FMemoryWriter does not support data larger than 2GB. Archive name: D:/Hermes 4.5/Content/Maps/Map_1.umap.

It seems that my map is too large :X

Yea, i did it but i had no idea that smth like that exist ^^.