problem with simulink especially with simpower system

I am receiving this error when I am using any element of simpower in the simulink: "Initialization commands cannot be evaluated". What is the problem and how can I fix that?

Please guide me.

Answer 1

[Matin]

I found the problem. I forgot to use the "POWERGUI" in my simulink model.

Answer 2

[Andreas Goser]

I found this bug report. Please verify. If it does not work, please let us know if this happens for a demo model and which release on which OS you are using.