# Circuitikz - pgfkeys error with the 'invert' command: How do I invert my Voltage source?

The Latex CircuiTikZ documentation [v0.8.3] says:

"Bipole paths can also mirrored and inverted (or reverted) to change the drawing direction."

Example:

\begin{circuitikz}
\draw (0,0) to[pD, invert] (2,0);
\end{circuitikz}


But running my code:

\documentclass{article}
\usepackage[utf8]{inputenc}
\usepackage[american]{circuitikz}
\pagestyle{empty}

\begin{document}

\begin{circuitikz} \draw
(0,0)   to[R=$R$, o-] (2,0)
to[V=$V$, invert] (3,0);

\end{circuitikz}

\end{document}


Gives the following error:

"Package pgfkeys Error: I do not know the key '/tikz/invert' and I am going to ignore it. Perhaps you misspelled it. to[V=$L_eI_{q1}\omega_e$, invert] (3,0)"

Any suggestions on fixing this error and getting the invert command to work?

• Welcome to TeX.SX! I can't reproduce your error. It works fine for me. Have you checked your packages? – Bobyandbob May 30 '18 at 10:20
• When you see a key error with a key name belonging to a third party package and key family being tikz, here for example /tikz/invert it usually means that the third party could not handle the key itself and thought it must be a TikZ key. Hence probably you have a circuitikz version that doesn't understand invert key. Try updating first. Or you are using the key in the wrong context. – percusse May 30 '18 at 10:22
• @percusse, the context is ok. The code works with actual circuitikz 0.8.3 release. – jotagah May 30 '18 at 10:52
• It seems like I have an error updating with tlmgr - I remember doing some dodgy things when I first installed TexLive. Shall I delete this question since the real problem is an installation one? – Jandré Dippenaar May 30 '18 at 12:13
• When you load the circuitikz package, it works also in the tikzpicture environment, just for a test, try changing the begin{circuitikz} ... end{circuitikz} environment by \begin{tikzpicture} ... end{tikzpicture}because in my compiler the first one generates warnings. – J Leon V. May 30 '18 at 15:17