Hi,
when I migrated my website to windows server 2008, something wrong happen(check the attachment).
I google the reason for this:
"This problem may occur if there is a duplicate entry for the specified configuration section setting at a higher level in the configuration hierarchy (for example, in a parent site/folder’s web.config or applicationHost.config file). The error message itself points out the location of duplicate entry or entries. "
but I am still confused. I placed the folder under the root of C disk, there is no parent folder.