# Undefined reference (in some cases)

At first I would like to thank the community for the work that is done here. Whenever there is a LaTeX problem evolving, this site is the first to check by. However, this time it seems that no one has had my problem before (something truely unimageanable to me):

I am currently writing my thesis with LaTeX and the documentclass apa6. Whenever I try to refrence a section/ subsection/ ... I am not able to reference the section number with \ref or \autoref. However, it works with \nameref.

The Log throws "undefined references" errors for the first two references (i.e. \ref & \autoref) but not for the last.

Here is my minimal example:

\documentclass[man, 12pt, a4paper, floatsintext]{apa6}

%================ Packages =================================
% fontenc Package
\usepackage[T1]{fontenc}

\usepackage[utf8]{inputenc}

\usepackage[ngerman]{babel}

%url Package
\usepackage{url}

%Euro Zeichen
\usepackage{eurosym}

% todo=Package
\usepackage{todonotes}

% TikZ
\usepackage{tikz}

% Figure Packages
\usepackage{graphicx}
\usepackage{subcaption}
\captionsetup{font=footnotesize}

% um \patchcmd ausführen zu können
\usepackage{etoolbox}

% Für gewisse Textzeichen
\usepackage{textcomp}

% Erleichterter Import von Dateien
\usepackage{import}

% Über- und Unterschriften für Bilter/ Tabellen
\usepackage{caption}

%Verbesserte Referenzen
\usepackage{hyperref}
\hypersetup{
citecolor=black,
filecolor=black,
urlcolor=black
}
%Standalone
%\usepackage{standalone}

\usepackage{apacite}

\title{Example of a Title}
\shorttitle{Short Example}
\author{Knows not}
\affiliation{XY}
\abstract{}

\begin{document}
\maketitle

\section{Foo}
\label{sec:foo}

Referencing \ref{sec:foo} or \autoref{sec:foo}, that goes by the name of \nameref{sec:foo}

\end{document}

• Welcome to TeX.SX! Nice MWE! However, it should be \ref{sec:foo}, not \ref{section}. Apparently the sections are unnumbered. – egreg May 31 '17 at 14:02
• As "Foo" does not have a number, only \nameref{sec:foo} makes sense. \ref{section} cannot work, as you did not specify a label calledsection. – user36296 May 31 '17 at 14:07
• Sorry for the typo. Of course it should have been \ref{sec:foo}. I edited that. However, the outcome is the same. – gaspode May 31 '17 at 14:11
• @gaspode It seems a precise choice of apa6 not to number sections. Since \ref would print the number, it finds nothing. – egreg May 31 '17 at 14:12
• @samcarter How would I add a number to make this MWE work? In fact, this is the core of the question. – gaspode May 31 '17 at 14:13

In the apa6 style sections are not numbered. If you want to submit a paper to a journal that requires apa6, you should stick to the style.
Since the man style is among the worst I know from a typographic point of view, I wouldn't recommend using it for any purpose other than submissions.
\setcounter{secnumdepth}{1}

after \maketitle.
• Perfect, that did it! I know, the man style is a sheer beauty. But unfortunately, I have to write my thesis in the APA manual style... Thank you, anyway! – gaspode May 31 '17 at 14:22