FloXpress will no analyze my assembly.

Hey guys,

I have an Assembly (VaneAxial Fan duct) that I need to do a FloXpress Simulation on but it continues giving me the message below.

I have sketched and extruded lids for both ends and I made sure that there are no holes or voids in the actual duct itself.

Any ideas on how to get around this?

Any help would be greatly appreciated!

Steve

SolidworksAssemblies