hey welcome to the forum.
don’t despair i don’t think you need to reinstall windows.
have you regenerated your project? i haven’t seen that in your list.
also can you share the header of your new class and which folder is in?
that’s the magic of the forum. posts tend to stay around for people to look at them.
that’s very last resort lol. i wouldn’t trust an llm even if i get paid.
can you share the actual error log? (like the full log)
also can you try rider? it’s free for non commercial and also for testing.
but with rider you don’t open the sln file, you open the uproject. but delete intermediate, saved, and binaries, before opening it. no need to regenerate with rider as it will do it automatically.