circuitikz wrongly displays european voltages

Question

The voltages arrows are misplaced with respect to the components, in this case a resistor.

 \begin{figure}[!h]
    \centering
    \ctikzset { bipoles/length=1cm}
    \begin{circuitikz} [european ,scale=0.65]
        \draw
        (5,0) to[short]
        (0,0) to[V = $V_{supply}$] 
        (0,3) to[generic=${Shunt}$]
        (5,3);
        \draw
        (5,0) to[R,mirror,v>=$v_{o}$,i<=$i_o$] (5,3);
        \draw (6,0) to[R,mirror,v>=$v_{o}$,i<=$i_o$] (8,0);
    \end{circuitikz}
    \label{fig:OI_model}
    \caption{The Output Impedance Model for SCCs. }
  \end{figure}

See the result:

Answer 1

Is this what you want?

\documentclass{article}
\usepackage{circuitikz}

\begin{document}
 \begin{figure}[!h]
    \centering
    \ctikzset{bipoles/length=1cm}
    \begin{circuitikz} [european]
        \draw
        (5,0) to[short]
        (0,0) to[V = $V_{supply}$]
        (0,3) to[generic=${Shunt}$]
        (5,3);
        \draw
        (5,0) to[R,v^<=$v_{o}$,i<=$i_o$] (5,3);
        \draw (6,0) to[R,v^<=$v_{o}$,i<=$i_o$] (8,0);
    \end{circuitikz}
    \label{fig:OI_model}
    \caption{The Output Impedance Model for SCCs. }
  \end{figure}
 \end{document}

I have removed mirror (which doesn't work) and used v^ instead.