Missing number treated as zero in subfigure caption

Question

What number am I missing the moment I want a subcaption for my subfigure it tells me I'm missing a number for some reason. The error also disappears if I remove the roman counter option.

\documentclass[a4paper,UKenglish]{article}
\usepackage{graphicx}
\usepackage{caption}
 \usepackage{subcaption}
 \renewcommand{\thesubfigure}{\roman{counter}} 
\begin{document}
asdfasdf
\begin{figure}
    \centering
   \begin{subfigure}[b]{0.45\textwidth}
    \includegraphics[scale=0.5]{example-grid-100x100pt}
    \caption{asdfsfad}
   \end{subfigure} 
   \begin{subfigure}[b]{0.45\textwidth}
      \includegraphics[scale=0.5]{example-grid-100x100pt}
   \end{subfigure}
    \caption{Caption}
\end{figure}
\end{document}
\end{document}

are you using both packages subfigure and subcaption -- have a look here -- https://tex.stackexchange.com/questions/19946/missing-number-treated-as-zero?rq=1 — js bibra, Dec 13 '20 at 06:05
@jsbibra I didn't load the subfigure package though is there a way to stop it from loading? — Hao S, Dec 13 '20 at 06:07
@Dr.ManuelKuehner sorry I accidentally deleted a line \usepackage{graphicx} fixed now — Hao S, Dec 13 '20 at 06:19
Please make the code compilable without pic1.png etc, see https://tex.stackexchange.com/questions/231738. Do you know that you can format the code in your question (in the editor)? — Dr. Manuel Kuehner, Dec 13 '20 at 06:20
If you don't put effort in your question then it's less likely that others put effort in trying to help. — Dr. Manuel Kuehner, Dec 13 '20 at 06:22
@Dr.ManuelKuehner how do I get code onto a new line without double spacing it? — Hao S, Dec 13 '20 at 06:28
\par But please make yourself familiar with "how to ask questions", at the moment your questions have a very very low quality. https://tex.meta.stackexchange.com/questions/228 and https://stackoverflow.com/help/how-to-ask — Dr. Manuel Kuehner, Dec 13 '20 at 06:29
@Dr.ManuelKuehner I meant in the editor without changing my code it just puts all the code on one line — Hao S, Dec 13 '20 at 06:30
@Dr.ManuelKuehner I tried that but only the first line sticks and the rest falls out of that box when I paste — Hao S, Dec 13 '20 at 06:39
Please make sure that you read the pinks that I shared with you before you ask more questions. — Dr. Manuel Kuehner, Dec 13 '20 at 06:47
Are you happy with the provided answer? If yes, please consider accepting it. The same is true for many of your other questions. — Dr. Manuel Kuehner, Dec 15 '20 at 08:27

score 4 · Accepted Answer · answered Dec 13 '20 at 07:21

You use wrong name for subfigure caption's number. Instead of counter it must be subfigure (see @Dr. Manuel Kuehner answer).I guess that you like to obtain the following result:

Complete MWE is:

\documentclass[a4paper,UKenglish]{article}
\usepackage{graphicx}
\usepackage{caption}
\usepackage{subcaption}
\renewcommand\thesubfigure{\roman{subfigure}}
\usepackage{lipsum} % added for generation of dummy text
\begin{document}
\lipsum[11]
\begin{figure}[ht]
    \centering
    \begin{subfigure}[b]{0.45\textwidth}
    \centering
\includegraphics[scale=0.5]{example-grid-100x100pt}
\caption{first subfigure}
   \end{subfigure}
\hfil
   \begin{subfigure}[b]{0.45\textwidth}
    \centering
\includegraphics[scale=0.5]{example-grid-100x100pt}
\caption{second subfigure}
   \end{subfigure}
\caption{Caption}
\end{figure}
\end{document}

+1: Very good! @HaoS Please accept this answer. – Dr. Manuel Kuehner Dec 13 '20 at 08:09 — Dr. Manuel Kuehner, Dec 13 '20 at 08:09

Missing number treated as zero in subfigure caption

1 Answers1