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I'm running Orgmode 8.2.10 on a Mac (El Capitan) and I'm trying to use C-c C-x C-l to preview some latex formulas. However, using the mentioned shortcut produces the error:

Can't find "latex" (needed to convert LaTeX fragments to images)

I have the following on my .emacs:

(setenv "PATH" (concat (getenv "PATH") ":/usr/local/bin/gs:/Library/TeX/texbin/"))

and I even tried adding :/Library/TeX/texbin/latex, which is where my "latex" is.

  • It may be a symbolic link that is broken due to an upgrade or something. Try locating the actual location and use that instead. For example, mine is at: ...texlive/2012/bin/x86_64-darwin – lawlist Dec 1 '15 at 21:45
  • If you've installed LaTex via Macports recently, then latex is probably located at /opt/local/libexec/texlive/texbin/latex – Emacs User Dec 17 '15 at 11:57
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I have the same problem with you on my Mac(El Capitan), and the colon ":" maybe affects.
After I delete the colon ":", the preview works in my Emacs. Here is my code on my .emacs:

(setenv "PATH" (concat "/Library/TeX/texbin" (getenv "PATH")))
(setq exec-path (append '("/Library/TeX/texbin") exec-path))

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