CicuiTikZ Special Sources not recognised

Question

In the package CicuiTikZ there are some special sources listed in the documentation, in section 4.2.9. For some reason I can't get them to work. Here is my code:

\documentclass{report}

\usepackage{circuitikz}
\usepackage{tikz}
    \usetikzlibrary{arrows,patterns,decorations,shapes.geometric}
    \usetikzlibrary{decorations.markings,decorations.pathmorphing,decorations.pathreplacing}

\begin{document}

\begin{figure}[h]
    \begin{center}
        \begin{circuitikz}[european]
            \draw
              (0,0) to [ioosource, l_ = $I$] (0,3)
        \end{circuitikz}
     \end{center}
\end{figure}

\end{document}

Which should be correct according to the documentation. I'm using Overleaf to compile in PdfLaTeX so the packages should all be up to date.

Answer 1

So looking into this in detail while Overleaf indeed uses TeX Live 2016 and the build in which Special Sources for CicuiTikZ is also 2016. The actual build of CicuiTikZ included in the 2016 TeX Live build is from 2015 -- and that is the reason.

Thanks to daleif and Raaja!