Skip to content

__std_unique_8 Crash #2061

Description

@ffreality

I am trying to integrate C++ standalone library to Unreal Engine 5.8 to import IFC files at runtime (Platform is Windows 11 x64).
I can build the library but when I integrate it to the engine Visual Studio gives

unresolved external symbol __std_unique_8 referenced in function "unsigned __int64 * __cdecl std::_Unique_vectorized<unsigned __int64>(unsigned __int64 * const,unsigned __int64 * const)"

error.

I am using C++ 20 and Visual Studio 2026.

Metadata

Metadata

Assignees

No one assigned

    Labels

    No labels
    No labels

    Type

    No type

    Projects

    No projects

    Milestone

    No milestone

    Relationships

    None yet

    Development

    No branches or pull requests

    Issue actions