[Discuss-gnuradio] GRC error: "ImportError: cannot import name wxgui"

HI,
I have installed GR on a Compaq 6715b laptop and everything seems to work except the GRC. When I try to run a simple test example I get the above error.

I have tried to search the internet for it, but I can not find any reference to it. Does anyone know what is missing?

Thanks in advance for your help,

Best regards,
Farhad