GNS

السلام عليكم
انا اخوكم احمد من الجزائر و عندى مشكل هو فى برنامج GNS
I am using GNS3 all-in-one package, the installation went smoothly but the error appears once i launch the GNS program

"Can't import Qt modules, PyQt is probably not installed ..."

Can you give me a solution?

Thanks,
:(