I export the subtree, below is the org, and after that is the latex

===

* projects

:PROPERTIES:
:header-args: :cache yes
:EXPORT_DATE: \today
:EXPORT_AUTHOR: myname
:EXPORT_LaTeX_HEADER+: \usepackage{array}
:EXPORT_LaTeX_HEADER+: \usepackage{tikz}
:EXPORT_LATEX_HEADER+: \usepackage[margin=1in]{geometry}
:EXPORT_LaTeX_HEADER+: \usepackage{algpseudocode}
:EXPORT_LaTeX_HEADER+: \usepackage[extendedchars]{grffile}
:EXPORT_LaTeX_HEADER+: \usepackage[T1]{fontenc}
:EXPORT_TITLE: my title
:EXPORT_FILE_NAME: mypdf.pdf
:EXPORT_OPTIONS: H:3 toc:nil *:t ^:nil :t
:EXPORT_LaTeX_CLASS: beamer
:EXPORT_SELECT_TAGS: export
:EXPORT_EXCLUDE_TAGS: noexport

:END:


** Data
*** Test
**** Slide
     - item


===


% Created 2015-08-06 Thu 13:20
\documentclass[presentation]{beamer}
\usepackage[utf8]{inputenc}
\usepackage[T1]{fontenc}
\usepackage{fixltx2e}
\usepackage{graphicx}
\usepackage{longtable}
\usepackage{float}
\usepackage{wrapfig}
\usepackage{rotating}
\usepackage[normalem]{ulem}
\usepackage{amsmath}
\usepackage{textcomp}
\usepackage{marvosym}
\usepackage{wasysym}
\usepackage{amssymb}
\usepackage{hyperref}
\tolerance=1000
\usepackage{array} \usepackage{tikz} \usepackage[margin=1in]{geometry}
\usepackage{algpseudocode} \usepackage[extendedchars]{grffile}
\usepackage[T1]{fontenc}
\author{myname}
\date{\today}
\title{my title}
\hypersetup{
  pdfkeywords={},
  pdfsubject={},
  pdfcreator={Emacs 24.4.1 (Org mode 8.2.10)}}
\begin{document}

\maketitle


\section{Data}
\label{sec-1}
\subsection{Test}
\label{sec-1-1}
\subsubsection{Slide}
\label{sec-1-1-1}
\begin{itemize}
\item item
\end{itemize}
% Emacs 24.4.1 (Org mode 8.2.10)
\end{document}






On 6 August 2015 at 12:27, Eric S Fraga <e.fraga@ucl.ac.uk> wrote:

> On Thursday,  6 Aug 2015 at 12:15, Zhihao Ding wrote:
> > Hi guys,
> >
> > I had some problems producing beamer slides after I installed emacs and
> org
> > on a new computer. I am using emacs 24.4.1, and installed org (8.2.10
> > org-2018-08-03) using elpa.
> >
> > I don't seem to be able to get the frame environment even when I set the
> > "H" in the options, e.g.
> >
> > :EXPORT_OPTIONS: H:3 toc:nil *:t ^:nil :t
> >
> > It just gets to subsubsection and then stop. Any idea how to fix this?
> > Thanks a lot!
>
> How are you exporting?  Can you post a small example file?
>
> --
> : Eric S Fraga (0xFFFCF67D), Emacs 25.0.50.2, Org
> release_8.3beta-1315-ga3b2b7
>



-- 
Regards,
Zhihao Ding