Witnessing Error while using Powergui block.

Hello!

I was using Simulink to model a 3-Phase Power system and for the steady state response I opened the powergui block>> tools and then click Steady state, but readily witness an error. the screenshot of the error is shown below:- Kindly Help me please.

even if I ignore the error,I clicked the OK button the window opens but there is no response.

[Walter Roberson]

Work around: define

function clcdrawnow
  clc();
  drawnow();
end