@GulamMohammed Not entirely sure whether that was the reason, but that answer falls into the category "link only" – i.e. you've just linked to a solution on a different site. So if that page becomes unavailable, your answer becomes useless. It's a rule on SE sites for answers to be "self-contained", i.e. your answer should at least outline the solution (a link for reference is fine).
If you're not sure that would solve the issue on hand, and hence don't know whether it's "worth the trouble" to write a comprehensive answer – then use a comment to verify.
okay..now I got it.Yes you are right @Izzy,I simply stated the link, I need to explain the issue too along with link. Link only gives you a brief idea. Thanks Izzy.