Error Running IdealAirLoadsZoneHVAC OpenStudio Measure

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I am trying to add Zone HVAC Ideal Loads Air Systems (or I think I am, completely lost at this point!) in OpenStudio for a single zone. The option "Turn On Ideal Air Loads" in OpenStudio, is probably not what I am looking for. I downloaded the OpenStudio measure IdealAirLoadsZoneHVAC, but when I tried to run it, I got the following error: undefined method 'remove_HVAC' for #

Is this a measure error, or a pre-existing condition error within my model? I am just trying to add an IdealAirLoadsSystem to my OpenStudio model, and am struggling.