This error appears when the software is preparing to perform an energy analysis on a conceptual mass, but important information is missing from the model.
Issue: Conceptual mass energy analysis cannot be performed unless the mass has one or more mass floors, and the energy analytical model has been created.
Solution: Click Yes to proceed with the analysis. The software will create a mass floor using the lowest project level for visible masses, create the energy analytical model, and run the simulation.
Click No to cancel the analysis request.