The URI prefix is not recognized (Silverlight).

Today I came across an error - which I thought a tedious task, but it will take less than 5sec to fix. :)

I have a Silverlight UserControl hosted in a Asp.net website. The Silverlight project reads a xml from the Xap package(ClientBin of the hosting application- here asp.net website) using WebClient. I was getting this exception:

"The URI prefix is not recognized"

This is my code.

void wClient_DownloadStringCompleted(object sender, DownloadStringCompletedEventArgs e)
        {
            if (e.Result != null)
            {
                string productList = e.Result;
            }
            else
            {
                string Message = "Error Occured";
            }
        }

        public void LoadXml()
        {
            WebClient wClient = new WebClient();
            wClient.DownloadStringCompleted += new DownloadStringCompletedEventHandler(wClient_DownloadStringCompleted);
            wClient.DownloadStringAsync(new Uri("Products.xml", UriKind.Relative));
        }

This error was caused because the startup project was the Silverlight Project not the Hosting Application. Just make the Hosting Asp.net application as Startup project.