Natural System Error Messages 0551-0600

NAT0600: "END-IF" missing for IF statement in line :1:.

Text "END-IF" missing for IF statement in line ....
Expl. In structured mode, an IF statement block must be terminated with
a corresponding END-IF statement.
Example:
READ ...
IF ...
COMPUTE ...
COMPUTE ...
END-IF
DISPLAY
END-READ
END
Actn. Correct error in program.