I use TexStudio 2.8 with MikTex. I have all packages installed on my computer and some of them actually work. The problem is that if I hover the mouse over
I get a Package: fontspec (not found)
I wouldn't care that much for that, since I know it works, but the problem is that other packages, like currfile do not work, or at least their commands do not popup in autocomplete and I suspect these 2 problems are related.
So, how does TexStudio takes the decision to display Not found, even though it obviously finds the package since it gives no error when compiled and it does what it is supposed to do?