Checking non-numbered parts... Checking duplicated references... Checking nets with only one connection... ERROR: Net 'CAN0_SO' is connected to only one pin: U001:V1 . ERROR: Net 'ETH0_SO' is connected to only one pin: U001:T4 . ERROR: Net 'ETH0_SCK' is connected to only one pin: U001:V3 . ERROR: Net 'CAN0_SCK' is connected to only one pin: U001:W3 . Checking pins without the 'pintype' attribute... NOTE: Found pins without the 'pintype' attribute: U001:V1 U001:T4 U001:W1 U001:V2 U001:V3 U001:W3 Checking type of pins connected to a net... Checking unconnected pins... Checking slots... Checking duplicated slots... Checking unused slots... No warnings found. Found 4 errors.