MWE:
\documentclass[a4paper,11pt]{article}
\usepackage{amssymb}
\usepackage{rotating}
%\usepackage[turkish]{babel}
\begin{document}
\newcommand{\olok}{\rotatebox[origin=c]{135}{$\twoheadrightarrow$}}
\olok
\end{document}
and displaying

But, It takes Missing \endcsname inserted when I added \usepackage[turkish]{babel}.
I didn't find about this question. Does anyone know how to fix it?
(Perhaps about\shorthandoff{})
\rotatebox[origin=c]{90}{$\twoheadrightarrow$}into the document and load the[turkish]option, the document fails. So there's more to the problem than this. – Alan Munn Mar 02 '15 at 22:54=. – Werner Mar 02 '15 at 22:56\shorthandoff{=}. I think it is a dupe of http://tex.stackexchange.com/questions/160385/newgeometry-doesnt-work-with-turkish-babel-package – percusse Mar 02 '15 at 23:00