The end of a Texinfo file should include the commands that create
indices and generate detailed and summary tables of contents.
And it must include the @bye command that marks the last line
processed by TeX.
For example:
@node Concept Index, , Variables Index, Top @c node-name, next, previous, up @unnumbered Concept Index @printindex cp @contents @bye
Go to the first, previous, next, last section, table of contents.