[Tip] SharePoint Unknown Error

i have been told about this on how to work out this error…Here again just a reminder to myself

1. Locate this file … c:\inetpub\wwwroot\wss\virtualdirectories\<mysitename>\web.config
2. Search for “CallStack” and toggle that element to “true”. Then, do a search for “customErrors” and toggle that element to “off”.
3. Save the web.config file.