KB: Duplicate Net Names error on Multi-Channel buses
Created: March 25, 2021 | Updated: April 16, 2025
Altium Designer
[Error] TopSheet.SchDoc Compiler Duplicate Net Names Bus Slice - I am receiving this error on the buses from my multi-channel sheet, and my buses do not look like they are properly connecting in the netlist. The buses look to be properly formed. How do I fix this Duplicate Net Name error on a multi-channel design?
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The multi-channel feature appends information to your bus name, which does not follow the proper naming convention. Changing the multi-channel naming scheme to $RoomName_$Component allows the proper naming convention to be retained for buses as these net names are formed.
Under Project » Project Options » Multi-Channel Tab under the Component Naming - Change the Designator Format to $RoomName_$Component and then check the connections again.