When I tried to make change in DTL view then only i see following error whereas in XML mode no issue in compilation.

Any resolution and solution ? it looks like some missing xml parser configuration or Pulg ins ?

ensEPC.DataTransforms.dtEcgCEpc081518.dtl was saved locally but could not be saved remotely.

ERROR <Ens>ErrInvalidDTL: Invalid DTL

ERROR #5001: attribute 'sourceclass' is not declared for element 'transform'

ERROR #5001: attribute 'sourcedoctype' is not declared for element 'transform'