/sys$common/syshlp/helplib.hlb CC, Messages, NEEDSCALAR  *Conan The Librarian (sorry for the slow response - running on an old VAX)

 Message        <Context> "<expression>" has <type> type, which is
                not scalar.

 Description    An expression that must be a scalar type was not
                scalar.  For example, only scalars can be cast to
                other types.

 User Action    Modify the expression so that it is a scalar type.