# ERROR: The requested URL could not be retrieved

## Sorry ... The requested URL could not be retrieved

> While trying to process the request:

>     %R

> The following error was encountered:

> - Invalid Request

> Some aspect of the HTTP Request is invalid. Possible problems:

> - Missing or unknown request method
> - Missing URL
> - Missing HTTP Identifier (HTTP/1.0)
> - Request is too large
> - Content-Length missing for POST or PUT requests
> - Illegal character in hostname; underscores are not allowed

> Your cache administrator is %w.