Debugging library - Error- expected unqualified id before '.' token
class _Sluz;
class _SDHT;


You're forward declared two classes but I see nothing about what those classes are. You then to and use those class declarations as if they were class instances.

I think you are lacking a bit of basic syntax knowledge there. You may have meant:

Sluz _Sluz;
SDHT _SDHT;


Though not knowing what those classes are meant to be or how they are even defined I cannot know really what you think you're meaning.