A required element is missing
HTMLDocument::RequiresElement( String )
The String contains details of the error
This Exception is thrown by various parts of the module if a required element is missing, or an operation that can only be applied to certain elements is applied to a different element.
Kaya standard library by Edwin Brady, Chris Morris and others ([email protected]). For further information see http://kayalang.org/
The Kaya standard library is free software; you can redistribute it and/or modify it under the terms of the GNU Lesser General Public License (version 2.1 or any later version) as published by the Free Software Foundation.