Error 3014 - Cannot open any more tables

Problem

On attempting to publish a Book, the following error appears:

ERROR DESCRIPTION
Module: clsLibrary
Procedure: GetRecordset SQL: select T.*, O.DESCRIPTION, O.OBJT_TYPE,O.OBJT_KEY, O.DOCUMENT, O.HELP, O.HTML, O.BASED_ON, TP.HEADING, TP.H_HEADING, TP.HT_HEADING, TP.HT_FILENAME, TP.HT_NEW_PAGE, TP.HT_MEDIA_OBJT_ID, TP.H_JUMP_TYPE, TP.H_CONTEXT_STRING, TP.H_CONTEXT_ID, TP.HWINDOW_OBJT_ID, TP.JUMP_MACRO_OBJT_ID, TP.H_NON_SCROLLING, TP.SUPER_HEADING, TP.HT_TOC_IMAGE from (TOC T inner join OBJT O on T.OBJT_ID = O.OBJT_ID) left join TOPIC_OBJT TP on T.OBJT_ID = TP.OBJT_ID where T.DOC_OBJT_ID=164 and T.PARENT=6 order by T.PARENT,SIBLING_ORDER
Number: 3014
Description: Cannot open any more tables.
Source: DAO.Database
Version: 4.1 (build: 4.1.###)

Reason

The Book has been included in itself

Solution

Remove the second instance and republish.