# tikzpicture fails when externalization is enabled [closed]

In a document of mine I'm trying to use the external library. For the record, I downloaded the CVS version of TikZ, since I want the better update checks. Anyway, I have a figure in my code which compiles perfectly as long as I have \tikzset{external/export next=false} in front of it; that is, the figure's code is correct. However, once I change the value to true, then I get the following error (I hope this is indeed the relevant part):

 (./figures/region-bounded-by-hyperbolas.tex
Runaway argument?
{ \clip (-3,-2) rectangle (4,3); \draw [thick,gray,->] (-2.5,0) -- (3\ETC.
./figures/region-bounded-by-hyperbolas.tex:83: Paragraph ended before \tikzexternal@externalizefig@systemcall@uptodatecheck was complete.
\par
l.83 \end{tikzpicture}

./figures/region-bounded-by-hyperbolas.tex:83:  ==> Fatal error occurred, no output PDF file produced!


When using the 2.10 version this seems to work fine for both boolean values - unfortunately then the update method is poor.

Is this a bug? Am I doing something wrong? How can I debug/troubleshoot this?

Edit 1: I just installed an even newer version of TikZ, 4.8.2012 (following the suggestion here), and everything seems to work as expected. Thus, it seems like the issue I experienced was a bug. In case no further insights are provided, then I'll flag to close this questions

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## closed as too localized by Christian Feuersänger, percusse, Tom Bombadil, Dror, diabonasAug 25 '12 at 9:37

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There has been a bug in some CVS version which has been fixed shortly afterwards. I would suppose that you ran into it. –  Christian Feuersänger Aug 24 '12 at 21:06