VMS Help FORTRAN, Error Messages, Compilation Errors, IDOINVPAR  *Conan The Librarian (sorry for the slow response - running on an old VAX)

  SEVERITY:  F

  MESSAGE TEXT:  Invalid DO parameters in implied-DO list

  EXPLANATION:  An invalid control parameter was detected in an
  implied-DO list in a DATA statement; for example, an increment of
  zero.