Checking non-numbered parts... Checking duplicated references... Checking NoConnection nets for connections... Checking nets with only one connection... Checking pins without the 'pintype' attribute... Checking type of pins connected to a net... Checking unconnected pins... Checking slots... ERROR: Reference R1: Incorrect value of numslots attribute (fa). Checking duplicated slots... Checking unused slots... No warnings found. Found 1 errors.