Air Teminal Error

[Revit3322]

Hi All,

I am trying to run the duct sizing tool for a project that I am working on and I have been getting an error saying that "Can't make type "family name of the the air terminal" followed by the system sizing failed . I have changed out the diffuser for another one and the tool works correctly. This leads me to believe that the air terminal is at fault.

The intersting part is that I am able to bring in the air terminal into the project and connect it to the duct. The only time I get the error is when I trying to run the duct sizing tool or change the air terminal size. Does anyone know what the error means and how to resolve the problem?

Just as baground information this air terminal is non hosted and comes from the E.H. Price Library. I have use another price air terminal and it works fine.

Thanks in advance.