Unity can't see any scripts

I have a bug where Unity can't see any of my scripts. I have tried reinstalling unity, creating a new project, creating and adding new scripts, and creating new objects, etc etc, but Unity still can't see any of my scripts.

They were all working just fine until after one time where I test ran the game, and upon closing that I got this error on all of my script components:

And now whenever I try to add a new script component, the menu that normally displays all of the different scripts in my project folder is empty: