Set up of a metal in the Flow Simulation Wizard.

I am new to using Flow Simulation.  I am tryin to test the flow on a computer we build with internal circuit boards.  When I am setting the Wizard up for the study, they do not have my metal for their defualts.  After I tell the Wizard to add it and run the study I always get a error message because of this problem I believe.  Any help would be great.  Thanks in advance.

SolidworksSimulation