# Can´t draw plain amp with circuitikz [closed]

I'm trying to use the package circuitikz, and I need to draw a plain amp, I'm traying to do this as the manual says but it keep throwing this error message

"I don´t know the '/tikz/plain amp' and i'm going to ignore it "


this is the code that i'm using.

\documentclass{article}
\usepackage{circuitikz}

\begin{document}

\begin{center}
\begin{circuitikz}
\draw (5,5) node[plain amp](amp){};
\end{circuitikz}
\end{center}
\end{document}


hope you can help me!

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## closed as too localized by Claudio Fiandrino, Qrrbrbirlbel, percusse, Andrew Swann, Torbjørn T.May 4 '13 at 22:07

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Welcome to TeX.sx! Your example works fine for me, perhaps you have an older version of circuitikz. Add \listfiles before \documentclass{article} and look in the log-file after compilation, at the end should be a list of all packages and their versions. I have v. 0.2.4 of circuitikz. –  Torbjørn T. Dec 18 '12 at 19:34
It works here. Probably different circuitikz version. If you search for the string CircuiTikz in your .log file, you can read the version. Mine is Package: circuitikz 2009/11/18 The CircuiTikz circuit drawing package version 0.2.4. –  JLDiaz Dec 18 '12 at 19:34
you were right!, i had an older version, but i updated it and now a have this error message "I can´t find file 'circuitikz.code.tex'. \input circuitikz.code.tex does anyone now why is this happening? –  Pablo Dec 18 '12 at 20:12
Pablo, for @JLDiaz and Torbjorn to get a notification you need to link their names as I did with the @. JLDiaz will see this message, and you might want to alert Torbjorn as well (I think only one name can be linked in each comment) –  Vivi Dec 18 '12 at 22:12
How did you update it, by just downloading the newest circuitikz.sty from CTAN and replacing the old one? While I have never used the package, it seems there is an additional file that is missing, so perhaps you can just download that one as well, and place it in the same folder. In general though, it is better to update using the package manager of your (La)TeX distribution. E.g. the Update manager of MikTeX (found in the Start menu). For TeX Live there is a command line utility, tlmgr update --self --all will update all packages. (ctd.) –  Torbjørn T. Dec 18 '12 at 23:07