- universal charstring ae optional //^error: The OPTIONAL component of USE-NIL cannot have any of the following encoding instructions: ANY-ATTRIBUTES, ANY-ELEMENT, DEFAULT-FOR-EMPTY, EMBED-VALUES, PI-OR-COMMENT, UNTAGGED, USE-NIL, USE-ORDER, USE-TYPE//
+ universal charstring ae optional //^error: The OPTIONAL component of USE-NIL cannot have any of the following encoding instructions: ANY-ATTRIBUTES, ANY-ELEMENT, DEFAULT-FOR-EMPTY, PI-OR-COMMENT, UNTAGGED, USE-NIL, USE-ORDER, USE-TYPE//