Cannot compile plugin because of Windows SDK

Development Programming & Scripting
1

When I made my plugin, I was getting no errors in Visual Studio 2019. And now I am receiving weird errors when I try to compile my plugin. I see that these warnings are from Windows SDK includes. Compiler was auto ran with -WarningsAsErrors (always has been) (To open or download image, drag on browser tabs. It will open preview or just download)

image
image1370×706 196 KB

*unknown symbols are replaced with ‘?’
I reinstalled epic games and unreal engine, both of them are not working. Windows SDK i have installed is latest (20.1xxxxx.xx). It gives no compiling plugin. Even if I deleted binaries and rebuilded over and over, it always gives errors

image

when opened winioctl.h, 2079 errors and 1 warning appeared (identificator is unknown and sorry for russian text displayed there)

image
image1014×706 34.1 KB

Compiled in UE 4.27.2. Please note that I am making my plugins, not stealing them from UE marketplace

2

Did you accidentally include the wrong header?

Had this case a few times, with auto-include headers from the IDE headers got included that have nothing to do with the code I’m writing which results in error messages on compile which sound very similar.

3

No, i didn’t. While I tested other plugins, they are worked fine. Except my EmailPlugin

4

The reason of this happening is for iostream includes
IOStream is relative for winioctl.h, which will cause more errors to appear