thermal simulation of composites with simulia

Hey everyone, I need help with the thermal simulation of composite materials with simulia. I build a model based on a simple 2D shape with the stacking and I am able to do a structual simulation with the exact same model. When I start the thermal simulation in the "mechanical scenario" after creating a "structual model" there is an error message called "distribution cannot be used to specify element properties for the thermal shell element" Does anyone have a clue what I could do to start the thermal simulation or maybe have another solution to do this kind.

Thank you very much