Error cannot find "option" attribute

[DeelakaSathsara]

Dear Team,

I have modeled a simple modular building using forcebeamcolumn element and intermodular connections with link elements. When I run the analysis it gives the following error. The error message and the building model is attached herewith. What could be the reason for that?

Thank you.

[STKO Team]

This happens when you pass a section to a forcebeamcolumn (or dispBeamColumn) element as a physical property.
Instead, you should put the section inside a PhysicalProperty->special_purpose->BeamSectionProperty, and assign it to the element.
This is important because the force (or disp) beam column require an integration scheme, and not only a section!