Checking non-numbered parts... Checking duplicated references... Checking NoConnection nets for connections... Checking nets with only one connection... ERROR: Net 'GND' is connected to only one pin: DEFAULTS:1 . Checking pins without the 'pintype' attribute... Checking type of pins connected to a net... Checking unconnected pins... ERROR: Unconnected pin AMP2:2 Checking slots... Checking duplicated slots... Checking unused slots... No warnings found. Found 2 errors.