/sys$common/syshlp/helplib.hlb FORTRAN, Error Messages, Compilation Errors, OPEDOLOOP  *Conan The Librarian (sorry for the slow response - running on an old VAX)

  SEVERITY:  F

  MESSAGE TEXT:  Unclosed DO loop or IF block

  EXPLANATION:  The terminal statement of a DO loop or the END IF
  statement of an IF block was not found.  Example:

     DO 20 I=1,10
     X = Y
     END