Library /sys$common/syshlp/basichelp.hlb Compile time errors, FLDVARNOT  *Conan The Librarian (sorry for the slow response - running on an old VAX)

  ERROR - The program attempts to pass  a  variable  named  in  a  FIELD
  statement  as  a parameter.  If a variable appears in FIELD statement,
  the variable cannot be passed as a parameter.