File ended while scanning use of \caption@iiibox

Question

I am using TexStudio 2.12.6, with MiKteX 2.9.6100

\documentclass[11pt,a4paper,fleqn]{article}
\usepackage[T1]{fontenc}% Must be loaded for proper fontencoding when using pdfLaTeX
\usepackage[utf8]{inputenc}
\input{ix-utf8enc.dfu}
\usepackage{amsmath}
\usepackage{mathptmx}
\usepackage{makeidx}
\usepackage[pdftex]{graphicx}
\usepackage{lscape}
\usepackage{natbib}
\usepackage{dsfont}
\usepackage{gensymb}
\usepackage{textcomp} 
\usepackage{mathtools}
\usepackage{amsfonts}
\usepackage{amssymb}
\usepackage[titletoc]{appendix}
\usepackage{xcolor}
\usepackage[colorlinks]{hyperref}
\usepackage{cleveref}
\usepackage{longtable}
\usepackage{multirow}
\usepackage{tabularx}
\usepackage{booktabs}
\usepackage{array}
\usepackage{siunitx}
\usepackage{tipa}
\usepackage{fancyref}
\usepackage{fixltx2e}
\usepackage{subcaption}

\newcommand\rd{\mathrm{d}}


\begin{document}



\begin{figure}[h]
    \centering
    \subcaptionbox{Socio--political instability and Inflation -- average over time}
        {\includegraphics[height=60mm, width=60mm]{spi_inflation_ave_t2.pdf}
    \subcaptionbox{Socio--political instability and Inflation -- average over countries}
        {\includegraphics[height=60mm, width=60mm]{spi_inflation_ave_i.pdf}
    \caption{SPI vs CPI}
    \label{fig:fig1}
    \end{figure}

\end{document}

which gives me "File ended while scanning use of \caption@iiibox." error as well as "fixltx2e is not required with releases after 2015(fixltx2e) All fixes are now in the LaTeX kernel." warning.

Although not new to LaTeX I am not familiar with coding, and do not know where the problem lies. Even when I uncomment the "fixltx2e" package, I still get the error and no pdf compile.

score 1 · Answer 1 · answered Feb 13 '18 at 14:43

You don't have a closing brace for your \subcaptionboxes:

\begin{figure}[h]
  \centering
  \subcaptionbox{Socio--political instability and Inflation -- average over time}
    {\includegraphics[height=60mm, width=60mm]{spi_inflation_ave_t2.pdf}}
  \subcaptionbox{Socio--political instability and Inflation -- average over countries}
    {\includegraphics[height=60mm, width=60mm]{spi_inflation_ave_i.pdf}}
  \caption{SPI vs CPI}
  \label{fig:fig1}
\end{figure}

And yes, you can remove fixltx2e from your set of \usepackages.

Although it's not a current problem (from the looks of it), you should consider loading hyperref very late in your preamble. See Which packages should be loaded after hyperref instead of before?

File ended while scanning use of \caption@iiibox

1 Answers1