SAKTHI VEL - 2011-08-29

Hi, I am new to this validation process. I am having an error with schematron validation. When i try to validate an XML document against a schema, it throws an unhandled exception. Here is the error detail.
        BsdSchemaException was Unhandled
        Error: Cannot resolve the 'schemaLocation' attribute.
Please provide me some assistance to eliminate this..
                    Thanks in advance…….