I have all those files installed. In fact, I removed them and reinstalled them in case any library got deleted by mistake. But the boards still do not show in the screen.
Not only is Arduino not detecting them, but either the computer itself.
I tried different cables, and other computers as well. Also, other Arduino boards work normally.
Yes, I did try different USB cables and different computers. However, I currently don’t have access to other PCs, only a couple of MacBooks running the same OS as my computer…