errors on mismatch data type when validaing define.xml

Hi,

I got an error and a warning message as below when validated the define.xml

The error refers to rule # OD0080: ItemDef/CodeList 'DataType' mismatch, where //ItemDef[@OID='AE.AEENDTC'] has datatype='datetime' and the ISO8601 codelist datatype='text'

The warning refers to rule # DD0010:ODM attribute 'SASDatasetName' should not be included in Define.xml. These are the SASDatasetName attribute that I have in teh define.xml to show the dataset names on the TOC

Any help is appreciated on why the errors appear and how to resolve them. I did a test run by validating the define.xml from the sample metadata submission from CDISC website and got the same errors.

Thank you for your help in advance.