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

  ERROR  -  The  program  contains  an  invalid  declaration  containing
  contradictory  type  declarations,  for  example,  DECLARE  REAL BYTE.
  Supply a valid declaration.   Use  only  valid  integer  subtypes  for
  INTEGER and only valid floating-point subtypes for REAL.