# Feynmf does not show the labels [closed]

I use feynmf with TeXshop 3.25 on Mac OSX 9. Whereas it was working fine with previous versions (of LaTex and/or my OS?), it does not show the labels anymore, even in the fmfgraph* environment.

\documentclass[11pt,twoside,fleqn]{report}
\usepackage{feynmf}
%\usepackage{feynmp}
\begin{document}
\begin{figure}[ht]
\begin{center}
\begin{fmffile}{ivbp}
\begin{fmfgraph*}(100,70)
\fmfpen{thin}
\fmfleft{i1,o1}
\fmfright{i2,o2}
\fmf{fermion,width=.2mm}{i1,v1,o1}
\fmf{phantom}{i2,v2,o2}
\fmf{photon,label=$W^+$}{v1,v2}
\fmfv{decor.filled=full,decor.size=1mm}{v1,v2}
\fmflabel{$1$}{i1}
\end{fmfgraph*}
\end{fmffile}
\end{center}
\end{figure}
Fin
\end{document}

-
Welcome to TeX.SX! Please add a minimal working example (MWE) that illustrates your problem. It will be much easier for us to reproduce your situation and find out what the issue is when we see compilable code, starting with \documentclass{...} and ending with \end{document}. –  egreg Nov 6 '13 at 14:05
\documentclass[11pt,twoside,fleqn]{report} \usepackage{feynmf} %\usepackage{feynmp} \begin{document} \begin{figure}[ht] \begin{center} \begin{fmffile}{ivbp} \begin{fmfgraph*}(100,70) \fmfpen{thin} \fmfleft{i1,o1} \fmfright{i2,o2} \fmf{fermion,width=.2mm}{i1,v1,o1} \fmf{phantom}{i2,v2,o2} \fmf{photon,label=$W^+$}{v1,v2} \fmfv{decor.filled=full,decor.size=1mm}{v1,v2} \fmflabel{$1$}{i1} \end{fmfgraph*} \end{fmffile} \end{center} \end{figure} Fin \end{document} I typeset it with Latex to produce a .mf. I typeset it again to produce .tfm and .600pk. The graph appears without labels. –  user39584 Nov 9 '13 at 9:28
I added the code to the question, where it's more readable; then I tried compiling it. I get the labels both with feynmf and feynmp (the latter is recommended with pdflatex). –  egreg Nov 9 '13 at 10:15