How do we get figure references to not render as "??"

Question

Below is some source code for a short/brief document. When I compile the short document document only once, the source code \ref{figure:FORMULA:anatomy} becomes ?? in the pdf. If I run PDFLaTeX a second time, the .aux files etc... get updated and the figure reference becomes 1.1.

\documentclass{article}
\usepackage{graphicx}                            
\begin{document}                             

\section{Yellow}
\subsection{Submarines}

blah blah \ref{figure:FORMULA:anatomy}. 

\begin{figure}[htpb] \label{figure:FORMULA:anatomy}
  \centering
   \fbox{
        \begin{minipage}{\linewidth}
            \includegraphics[width=\linewidth]{FORMULA_anatomy}
            \caption{I'm a caption}
        \end{minipage}
    }% end fbox
\end{figure}

\clearpage

\end{document}

I have a different document which after running through PDFLaTeX a dozen times still has the figure references showing as ??. How can I get the figure references to render properly? Its very long document, so I will provide a link to the source code rather than pasting in the body of this question.

The source code for the document for which `\ref{lable}` almost always becomes `??` is here

You must place the \label after the \caption. – Phelype Oleinik Jan 30 '19 at 17:45 — Phelype Oleinik, Jan 30 '19 at 17:45
Oh my, how many times do we have this question? – Jan 30 '19 at 17:51 — , Jan 30 '19 at 17:51

How do we get figure references to not render as "??"

The source code for the document for which \ref{lable} almost always becomes ?? is here

0 Answers0

The source code for the document for which `\ref{lable}` almost always becomes `??` is here