Apierror-revisions-singlepage
From Beloveds
titles, pageids or a generator was used to supply multiple pages, but the $1limit</var>, <var>$1startid, $1endid</var>, <kbd>$1dir=newer, $1user</var>, <var>$1excludeuser, $1start</var>, and <var>$1end parameters may only be used on a single page.
