Oracle Message ORA-13293 - cannot specify unit for geometry without a georeferenced SRID

ERRORcannot specify unit for geometry without a georeferenced SRID
CAUSEAn Oracle Spatial function with a UNIT parameter was called on a geometry without a georeferenced SRID.
ACTIONMake sure that spatial functions with UNIT parameters are only called on geometries with georeferenced SRIDs.