[1] 18:40:39 Translation Error
[Buildings.Fluid.HeatPumps.Examples.Carnot_y: 20:3-34:67]: Variable heaPum: Cyclically dependent constants or parameters found in scope Buildings.Fluid.HeatPumps.Carnot_y$heaPum: {COP_nominal,etaCarnot_nominal}.

[2] 18:40:39 Translation Error
Error occurred while flattening model Buildings.Fluid.HeatPumps.Examples.Carnot_y

how to fix this? thank you