Keyword is not allowed for a DISK file; keyword is ignored.
20
Cause . . . . . : For a DISK file, the following keywords are allowed: BLOCK, COMMIT, DATFMT, EXTIND, IGNORE, INCLUDE, INFDS, INFSR, KEYLOC, PREFIX, RAFDATA, RECNO, RENAME, TIMFMT, and USROPN.
Recovery . . . : Remove the incorrect keyword. Compile again.