Vista - Help. Getting System.Web.HttpUnhandledException' was thrown.

Hi,

I never get this error on my development pc, but when I migrate my
website to the server, i get emails with the following exception. I
tried reading it and here is my application:

1. What is causing it?
2. From reading the description, I can't tell where it is coming from.
3. What steps do I need to fix this?

Thanks for any help.


Exception of type 'System.Web.HttpUnhandledException' was thrown.

Stack trace:
at System.Web.UI.Page.HandleError(Exception e)
at System.Web.UI.Page.ProcessRequestMain(Boolean
includeStagesBeforeAsyncPoint, Boolean includeStagesAfterAsyncPoint)
at System.Web.UI.Page.ProcessRequest(Boolean
includeStagesBeforeAsyncPoint, Boolean includeStagesAfterAsyncPoint)
at System.Web.UI.Page.ProcessRequest()
at System.Web.UI.Page.ProcessRequestWithNoAssert(HttpContext
context)
at System.Web.UI.Page.ProcessRequest(HttpContext context)
at ASP.product_aspx.ProcessRequest(HttpContext context) in c:\windows
\Microsoft.NET\Framework\v2.0.50727\Temporary ASP.NET Files\root
\0021d506\39a6858c\App_Web_jyr9uahy.12.cs:line 0
at
System.Web.HttpApplication.CallHandlerExecutionStep.System.Web.HttpApplication.IExecutionStep.Execute()
at System.Web.HttpApplication.ExecuteStep(IExecutionStep step,
Boolean& completedSynchronously)