UE5 5.5 + DLSS 4 C7742 Error

Hi everyone,

I’m running into a C++ compilation error when building my Unreal Engine 5.5 project on one of my machines. The error is as follows:

error C7742: "Streamline::EStreamlineFeatureSupport": a forward enum declaration can only use an unqualified identifier

This occurs inside a plugin (StreamlineCore), and the problem appears during packaging or building for Windows. Strangely, the exact same project builds perfectly fine on another computer without any issues.

I’m wondering if anyone has encountered this error before, and if there’s a known workaround or fix for it?

Thanks in advance!