[OS X TeX] tikz error (but still compiles fine)

Sat Sep 28 12:13:51 EDT 2013

	Hi all,

	I am creating a figure with tikz, and I get the following error when I compile a very basic picture:

> Package tikz Error: Sorry, the system call 'pdflatex -shell
> -escape -halt-on-error -interaction=batchmode -jobname "tikztest2-figure0" "\de
> f\tikzexternalrealjob{tikztest2}\input{tikztest2}"' did NOT result in a usable 
> output file 'tikztest2-figure0' (expected one of .pdf:.jpg:.jpeg:.png:). Please
>  verify that you have enabled system calls. For pdflatex, this is 'pdflatex -sh
> ell-escape'. Sometimes it is also named 'write 18' or something like that. Or m
> aybe the command simply failed? Error messages can be found in 'tikztest2-figur
> e0.log'. If you continue now, I'll try to typeset the picture.

	If I tell pdflatex to continue, the picture is just fine, as expected.

	It seems like it wants an output file that has a particular suffix, rather than an un-suffixed file?

	Thanks in advance for your help. 

Best,
-Nathan 

Here's a file that compiles "well" (with forced processing).

-------
\documentclass[tikz]{standalone}

\usepackage{tikz}
\usetikzlibrary{shapes,arrows,positioning,decorations.pathreplacing,external}
\tikzexternalize[force remake]

\begin{document}
\tikzstyle{stage}=[draw, circle, align=center, fill=blue!30, text width=2.5cm, minimum height=2em]

\begin{tikzpicture}[node distance=3.7cm, auto]
\node (id) [stage] {Identify problem};
\end{tikzpicture}
\end{document}  

------
Here's the relevant log output:
This is pdfTeX, Version 3.1415926-2.5-1.40.14 (TeX Live 2013)
 \write18 enabled.
entering extended mode
(./tikztest2.tex
LaTeX2e <2011/06/27>
Babel <3.9f> and hyphenation patterns for 78 languages loaded.
(/usr/local/texlive/2013/texmf-dist/tex/latex/standalone/standalone.cls
Document Class: standalone 2012/09/15 v1.1b Class to compile TeX sub-files stan
dalone
(/usr/local/texlive/2013/texmf-dist/tex/generic/oberdiek/ifluatex.sty)
(/usr/local/texlive/2013/texmf-dist/tex/generic/oberdiek/ifpdf.sty)
(/usr/local/texlive/2013/texmf-dist/tex/generic/ifxetex/ifxetex.sty)
(/usr/local/texlive/2013/texmf-dist/tex/latex/xkeyval/xkeyval.sty
(/usr/local/texlive/2013/texmf-dist/tex/generic/xkeyval/xkeyval.tex
(/usr/local/texlive/2013/texmf-dist/tex/generic/xkeyval/keyval.tex)))
(/usr/local/texlive/2013/texmf-dist/tex/latex/standalone/standalone.cfg)
(/usr/local/texlive/2013/texmf-dist/tex/latex/base/article.cls
Document Class: article 2007/10/19 v1.4h Standard LaTeX document class
(/usr/local/texlive/2013/texmf-dist/tex/latex/base/size10.clo))
(/usr/local/texlive/2013/texmf-dist/tex/latex/pgf/frontendlayer/tikz.sty
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(/usr/local/texlive/2013/texmf-dist/tex/generic/pgf/utilities/pgfutil-common.te
x)
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(/usr/local/texlive/2013/texmf-dist/tex/latex/ms/everyshi.sty))
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(/usr/local/texlive/2013/texmf-dist/tex/latex/latexconfig/graphics.cfg)
(/usr/local/texlive/2013/texmf-dist/tex/latex/pdftex-def/pdftex.def
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))
(/usr/local/texlive/2013/texmf-dist/tex/generic/pgf/frontendlayer/tikz/tikz.cod
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(/usr/local/texlive/2013/texmf-dist/tex/generic/pgf/libraries/pgflibraryplothan
dlers.code.tex)
(/usr/local/texlive/2013/texmf-dist/tex/generic/pgf/modules/pgfmodulematrix.cod
e.tex)
(/usr/local/texlive/2013/texmf-dist/tex/generic/pgf/frontendlayer/tikz/librarie
s/tikzlibrarytopaths.code.tex))))
(/usr/local/texlive/2013/texmf-dist/tex/generic/pgf/frontendlayer/tikz/librarie
s/tikzlibraryshapes.code.tex
(/usr/local/texlive/2013/texmf-dist/tex/generic/pgf/frontendlayer/tikz/librarie
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(/usr/local/texlive/2013/texmf-dist/tex/generic/pgf/libraries/shapes/pgflibrary
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(/usr/local/texlive/2013/texmf-dist/tex/generic/pgf/libraries/shapes/pgflibrary
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brarydecorations.pathreplacing.code.tex))
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ibraryexternal.code.tex
(/usr/local/texlive/2013/texmf-dist/tex/generic/pgf/frontendlayer/tikz/librarie
s/tikzexternalshared.code.tex)) (./tikztest2.aux)
ABD: EveryShipout initializing macros
(/usr/local/texlive/2013/texmf-dist/tex/context/base/supp-pdf.mkii
[Loading MPS to PDF converter (version 2006.09.02).]
) (/usr/local/texlive/2013/texmf-dist/tex/generic/oberdiek/pdftexcmds.sty)
(/usr/local/texlive/2013/texmf-dist/tex/latex/oberdiek/epstopdf-base.sty
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(/usr/local/texlive/2013/texmf-dist/tex/generic/oberdiek/kvdefinekeys.sty))
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(/usr/local/texlive/2013/texmf-dist/tex/generic/oberdiek/kvsetkeys.sty
(/usr/local/texlive/2013/texmf-dist/tex/generic/oberdiek/etexcmds.sty)))
(/usr/local/texlive/2013/texmf-dist/tex/latex/latexconfig/epstopdf-sys.cfg))This is pdfTeX, Version 3.1415926-2.5-1.40.14 (TeX Live 2013)
 \write18 enabled.
entering extended mode

===== 'mode=convert with system call': Invoking 'pdflatex -shell-escape -halt-o
n-error -interaction=batchmode -jobname "tikztest2-figure0" "\def\tikzexternalr
ealjob{tikztest2}\input{tikztest2}"' ========

./tikztest2.tex:46: Package tikz Error: Sorry, the system call 'pdflatex -shell
-escape -halt-on-error -interaction=batchmode -jobname "tikztest2-figure0" "\de
f\tikzexternalrealjob{tikztest2}\input{tikztest2}"' did NOT result in a usable 
output file 'tikztest2-figure0' (expected one of .pdf:.jpg:.jpeg:.png:). Please
 verify that you have enabled system calls. For pdflatex, this is 'pdflatex -sh
ell-escape'. Sometimes it is also named 'write 18' or something like that. Or m
aybe the command simply failed? Error messages can be found in 'tikztest2-figur
e0.log'. If you continue now, I'll try to typeset the picture.
-----
Nathan Paxton
napaxton at gmail.com

Outside of a dog, a book is man's best friend. Inside of a dog, it's too dark to read.
	—Mark Twain
(It's kind of cramped, too.)

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