Response Redirect is not working

On Successfull Login

I tried to redirect to page which is in subfolder but I am getting error

HTTP 404. The resource you are looking for (or one of its dependencies) could have been removed, had its name changed, or is temporarily unavailable. Please review the following URL and make sure that it is spelled correctly. 

1. For this I checked in logger which shows error on Response.redirect line

So I changed this line to Response .redirect("",false);Even after this error continues.

2. I checked all resources in which crystalreportviewer were present .For this Crystal report distributable setup had already installed.

3. I Checked all styles,images were present .But error continues.

4. I check page design where i am trying to redirect.Its was correct.

I tried all google but no way ...

Can you please give me different way to find this error that which dependency file is missing .

Thanks in advance ....