# Debugging TikZ and PGFPlots compatibility issue

I just tried to compile an old TikZ code (which as far as I recall compiled perfectly in the past and was not changed in the meanwhile) and I faced some serious compilation issues related to TikZ.

The last few lines of log are:

(/usr/local/texlive/2012/texmf-dist/tex/generic/pgfplots/oldpgfcompatib/pgfplot
soldpgfsupp_misc.code.tex
! Undefined control sequence.
l.236 ...e\let\pgfutil@next\relax\fi \pgfutil@next
}

Little googling around pointed that the problem might be some incompatibility between TikZ elements on my system. Since, as far as I recall, I didn't change my code and it compiled in the past, I believe that the problem indeed relates to my installation of TikZ. I'm using MacTeX on a Snow Leopard Mac OS, and I installed the CVS version of TikZ in my home directory. It seems, however, that pdflatex uses the older version of TikZ which is to be found in /usr/local/texlive/2012.

I don't really know where to start and debug this issue. For the reference the complete log file is here.

How can I fix the installation of TikZ? Is it correct behavior that TikZ uses code from both the main installation of texlive and from my local installation? If this question fails (and it is I guess a border case) to be valid to TeX.SE, then I hope you can at least point me to sources/places where I can get some help with this.

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Looking at your log, you are using the CVS version of TikZ/PGF but the TL version of pgfplots. There is a test in the pgfplots code which looks for a certain command to decide whether or not the PGF version is correct. It would appear that this is not passing the test. I don't know why, but that is where to start looking. The file with the test in it is: pgfplotsoldpgfsupp_loader.code.tex –  Loop Space Jan 23 '13 at 9:52
@AndrewStacey This makes lots of sense - I do not recall any manual installation of pgfplots. However, this is somehow still too cryptic for me. –  Dror Jan 23 '13 at 10:34
Given that you've updated TikZ/PGF, how about also updating PGFPlots? That might fix the issue without needing an in depth analysis of the files. –  Loop Space Jan 23 '13 at 10:36
It seems like my PGFPlots was updated (without any manual tweaking), but the TikZ was not the latest. I updated TikZ and it seems to solve the issue. –  Dror Jan 23 '13 at 11:06