First – don’t panic – I realize you have no information when you get this error and you have no troubleshooting direction at all, but don’t panic. Help is on the way.

Follow these three easy steps:

1. Go to the web.config file for your site and change two items:
   • Change Custom errors mode to “Off”
   • In the Safemode section, change the CallStack attirbute to ‘true’
2. Go Back to your page, refresh the page (I know – you will still get the same results), but this time, right click on the page and choose ‘View Source’.
3. Down below the closing HTML tag, you’ll find the stack trace. HERE is where you’ll most likely find help for your problem, with much more information than you had before.

You should now be well on your way to troubleshooting your problem. In SharePoint, if not – go to the SharePoint root:

(C:\Program Files\Common Files\Microsoft Shared\Web Server Extensions\14
\TEMPLATE\LAYOUTS\web.config)

Change Custom errors mode to “Off”, in the web.config file there.