# Warning: Difference (2) between bookmark levels is greater than one [duplicate]

I have Similar Question to this . I have following hierarchy

\part -> \section -> more than one \subsection --> the content of subsection . see the following code

necessary imports are here (assume it)
.
\begin{document}
\title{THE TITLE}
\author{AUTHOR}
\maketitle
\tableofcontents{}
\part{PART1}
\section{SECTION1}
\subsection{SUBSECTION1.1}
fmksmnd
nsdjkn
nvkdfjnv
\subsection{SUBSECTION1.2}
dsmvndsmv
n v,mvn f
nsdv,sdn
\part{PART2}
SAME STRUCTURE TILL THE END
\end{document}


And I am getting the same warning !

## marked as duplicate by egreg sectioning StackExchange.ready(function() { if (StackExchange.options.isMobile) return; $('.dupe-hammer-message-hover:not(.hover-bound)').each(function() { var$hover = $(this).addClass('hover-bound'),$msg = $hover.siblings('.dupe-hammer-message');$hover.hover( function() { $hover.showInfoMessage('', { messageElement:$msg.clone().show(), transient: false, position: { my: 'bottom left', at: 'top center', offsetTop: -7 }, dismissable: false, relativeToBody: true }); }, function() { StackExchange.helpers.removeMessages(); } ); }); }); Jul 8 '14 at 13:02

• If you read the post, you can see that warning is coming because of the skip of one level. In this case it's \chapter. Why don't put it instead of \part? Eventually you can redefine \chapter to have the same style as \part – Romain Picot Jul 8 '14 at 12:42
• This happens if you use the report class, which needs \chapter between \part and \section. If you don't have chapters, use the article class. – egreg Jul 8 '14 at 12:50
• So problem is the same as the other post you linked (use \usepackage{bookmark}): possible duplication – Romain Picot Jul 8 '14 at 13:00