How to change the resonant frequency HFSS?

I am trying to change the resonant frequency of an antenna in HFSS. I know the current resonant frequency and I know that changing the parameters changes the resonance. My question is, do I change the solution frequency to the frequency I want, and then analyze every time I change the parameters? If I change the solution frequency I get "Invalid calculation range: The selected frequency is inconsistent with available sweep port" after trying to analyze the model.

Welcome debsum,

I have never seen that particular error in HFSS; you should be able to simulate any frequency you want. What type of simulation are you running? What kinds of ports are you using?