Is there a way to get -latex arrow heads to work when using decorations.markings?
\documentclass[convert = false, border = 1cm]{standalone}
\usepackage{tikz}
\usetikzlibrary{calc, arrows, decorations.markings}
\begin{document}
\begin{tikzpicture}[decoration = {markings,
mark = at position 0.5 with {\arrow{-latex}}
}
]
\draw[postaction = decorate] (0, 0) circle [radius = 2cm];
\end{tikzpicture}
\end{document}
I have also tried with {-latex} but that doesn't work either.

latex; the syntax-latexmeans put an arrow tip of typelatexat the end of the path. – Gonzalo Medina Jul 11 '13 at 03:12