Org-mode not exporting frames correctly using beamer

Question

I'm writing a presentation using Org-mode and beamer. The problem is that all the frames are putted into a single one. I have the following code:

#+TITLE: \textbf{example}
#+AUTHOR: \large{sdjfioa}
#+DATE:
#+LaTeX_CLASS: beamer
#+LaTeX_CLASS_OPTIONS: [presentation,smaller]
#+LaTeX_HEADER: \usetheme{Ilmenau}
#+LaTeX_HEADER: \usecolortheme{beaver}
#+OPTIONS: H:2 toc:nil title:nil
* This is the first structural section

** This should be a frame
but it is not

** This should be another frame
fajsiodjfoiasjdfoii

the exported .tex file contains the following:

\begin{document}

\maketitle
\section{This is the first structural section}
\label{sec:org7d325e6}

\subsection{This should be a frame}
\label{sec:org5055c4a}
but it is not


\subsection{This should be another frame}
\label{sec:orgcbe0add}
fajsiodjfoiasjdfoii
\end{document}

And the pdf is like this

Answer 1

The commands to export a beamer document to a {buffer, file, PDF file, PDF file and Open} are different from the normal LaTeX export commands:

• C-c C-e l B exports to a LaTeX beamer buffer.
• C-c C-e l b exports to a LaTeX beamer file.
• C-c C-e l P exports to a PDF file.
• C-c C-e l O exports to a PDF file and opens the file.

N.B. That's a CAPITAL P for exporting to PDF and a CAPITAL O for exporting to PDF and opening the file. Make sure that you use the correct command.