Cfrgtkky

I am writing my thesis with a document class I found on Overleaf (I think from Cambridge, dont remember) but the error is reproducible with article document class as well.

I needed to side caption my figures and since I am using a made up class I know nothing about, the packages suggested for doing that here wouldnt work. From the same question I used Oleg's answer at the bottom of the page which was basically

%----------------------------------------

%COMMAND FOR DOING SIDE CAPTION.

%----------------------------------------

newcommand{sidebysidecaption}[4]{%

    RaggedRight%

    begin{minipage}[t]{#1}

        vspace*{0pt}

        #3

    end{minipage}

    hfill%

    begin{minipage}[t]{#2}

        vspace*{0pt}

       #4

    end{minipage}% 

}

Which works fantastically in my thesis but gives me the error "Undefined Control Sequence. }}". I checked and this error also shows up with article class. The pdf is produced just fine as far as I can tell but I am wondering where that error is coming from and if it can be fixed.

The function is used

begin{figure}[t]

    sidebysidecaption{0.555linewidth}{0.42linewidth}{%

        includegraphics[width=linewidth]{figure.pdf}%

    }{%

       caption[title figure]{caption figure %

        label{figure}%

    }}

end{figure}

Whole simple code would look like:

% !TEX encoding = UTF-8 Unicode 

documentclass[12pt,leqno]{article}

usepackage[spanish,english]{babel}

usepackage[utf8]{inputenc}

usepackage{amsmath}

usepackage{amssymb}

usepackage[demo]{graphicx}





newcommand{sidebysidecaption}[4]{%

    RaggedRight%

     begin{minipage}[t]{#1}

        vspace*{0pt}

        #3

    end{minipage}

    hfill%

    begin{minipage}[t]{#2}

        vspace*{0pt}

        #4

    end{minipage}%

}



begin{document} 



section{Section Title}



begin{figure}[t]

    sidebysidecaption{0.555linewidth}{0.42linewidth}{%

        includegraphics[width=linewidth]{figure.pdf}%

    }{%

        caption[title figure]{caption figure %

            label{figure}%

    }}

end{figure}

end{document}