ok i did purge opera but the directory and the error is still present but opera is not in my menu.so its uninstalled but the directory is present.
if i uninstall opera i do not get NFS stale handle anymore so other apps doesnot have this problem. only i can solve this by installing nitdroid? should i install nitdroid on emmc. i like opera. i want it since i dont find microb appealing and other browsers are very slow.