Checking non-numbered parts... Checking duplicated references... ERROR: Duplicated reference R1. 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: Multislotted reference R1 has no slot attribute defined. Checking duplicated slots... ERROR: duplicated slot 1 of uref R1 Checking unused slots... WARNING: Unused slot 2 of uref R1 Found 1 warnings. Found 3 errors.