Runtime error: No USRPs found on interface eth0

I am using UHD API and facing the problem, in-fact my PC
has gigabit ethernet interface still it gives an error No usrps found on
interface eth0 when run the any file except those files which start with

Any advice or solution for this problem…??

One more thing is that when i run and files it works fine without any error. why this so

I have burn the images of UHD not raw ethernet on sd card. I this the

Please help!!!