I’m a full beginner, I’ve been working on my first macropad project and have been stuck on one error on my PCB that I can’t seem to understand, and is happening for basically every component: Error: Missing connection between items PTH pad 1 [Net-(J1-GND)] of J1
I saw some posts talking about having different nets, and I’m pretty sure I added those in my layers since F.Cu is attached to the 3.3V net and the B.Cu to the GND net, either way, none of the connections are working.
A ratsnest line is a visual guide to show you which pads of which footprints need to have tracks drawn between them.
Ratsnest lines are not tracks.
You will notice that when you have correctly connected pads to each other, with tracks (according to your schematic), ratsnest lines will disappear. When you only have tracks on your board and no ratsnest lines left, it is time to use the DRC.
You seem to have tried to use the DRC before connecting the pads with tracks as the wise @retiredfeline has stated.