Pdev
Ansys Employee

Hi Marta, 

Thanks for reaching out. Enabling the "simulate source design as needed" should recitfy the error. Have you reviewed the following video?

https://www.youtube.com/watch?v=4MWTGHqRpjk

If you are still getting that error, please file a support case and we will be happy to review your model. Thanks!

Best,
Pdev