SelvarajPriyadharshini,
You need to be much more specific.
1. Is this related to the Windows Desktop Deployment Proof of Concept package?
2. What operating system?
3. What browser?
4. What error message (exactly)?
If the answer to question 1 is 'No', then I can direct you to the correct forum to get help.
Please note that with the amount of information you have provided, no one would be able to assist you. We must have details in order to begin to work through a problem with you.
Thanks,
David