Hey everybody, recently I've been learning how to use Altium Designer, and there's one error that I can't seem to get rid of. When I try to import changes from my schematic to my PCB, I get loads of unknown pin errors from my three ICs that I have in the schematic. I know I sound like a complete noob, which I honestly guess I am, but this error is keeping me from continuing work on this PCB. Any ideas?