The '%{model/}' mining model has a column that uses the DATE data type. This data type is not supported by the PMML 2.1 specification. ...

The '%{model/}' mining model has a column that uses the DATE data type. This data type is not supported by the PMML 2.1 specification. The DATE data type can typically be converted to the DOUBLE data type as a workaround, which is supported by the PMML 2.1 specification.