If you see "Server Error in '/'Application." in your asp.net site, you can do the following to see the actual error message:
Edit your web.config, change customErrors Mode to
<customErrors mode="Off"/>
You'll be able to see your actual error. Please make sure it's "Off", not "off".
Article ID: 257, Created: October 23, 2012 at 9:26 PM, Modified: October 23, 2012 at 9:26 PM