The file works correctly for me @Alex999 and it looks like you set up the air boundaries correctly.
You might have gotten a error message like that if you failed to connect up all of the rooms to the component.
In any case, if you are using the “HB Annual Loads” component and you are only interested in evaluating the heating/cooling loads, then you should stick to using the Ideal Air System. However, if you need to estimate electricity or fuel usage of a heating and cooling system, then you should use the HB HVAC components and you should be running the simulation using the “HB Model to OSM” component.