Checking non-numbered parts... Checking duplicated references... Checking NoConnection nets for connections... Checking nets with only one connection... ERROR: Net 'minusin_slot4_pin13_b' is connected to only one pin: U1:13 . ERROR: Net 'plusin_slot4_pin12_a' is connected to only one pin: U1:12 . ERROR: Net 'minusin_slot3_pin_b' is connected to only one pin: U1:9 . ERROR: Net 'plusin_slot3_pin10_a' is connected to only one pin: U1:10 . ERROR: Net 'minusin_slot2_pin6_b' is connected to only one pin: U1:6 . ERROR: Net 'plusin_slot2_pin5_a' is connected to only one pin: U1:5 . ERROR: Net 'minusin_slot1_pin_b' is connected to only one pin: U1:2 . ERROR: Net 'plusin_slot1_pin3_a' is connected to only one pin: U1:3 . Checking pins without the 'pintype' attribute... NOTE: Found pins without the 'pintype' attribute: U1:13 U1:12 U1:9 U1:10 U1:6 U1:5 U1:14 U1:8 U1:7 U1:1 U1:2 U1:3 Checking type of pins connected to a net... Checking unconnected pins... Checking slots... Checking duplicated slots... Checking unused slots... No warnings found. Found 8 errors.