Autodesk Revit Structure

[#1]

in the name of  GOD .

hello

I have a problem with Composite Design in Revit Structure 2013.

I select a steel beam and then run "Composite Design" but the error message is appear (see attached image 1 ).

after I click "OK" an error appear ( see attached image 2 ).

please help me to solve my problem to Design a Composite.

thanks beforehand for your appropriate answers

[#2]

You can only use the composite design extension for AISC W-Shape Members.

Regards.