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I installed MAC OS X 10.6.8 some weeks ago. Whenever I compile .tex file the following message turns up:

"Can't find required tool. usr/textbin/pdflatex/simpdftex does not exist. Perhaps TeXLive was not installed or was removed during a system upgrade. If so, go to the TeXShop web site and follow the instructions to (re)install TeXLive. Another possibility is that a tool path is incorrectly configured in TeXShop preferences. This can happen if you are using the fink teTeX distribution."

All I could has been done. Any help will be welcome.

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closed as too localized by egreg, Torbjørn T., David Carlisle, Xavier, Heiko Oberdiek Jun 1 '13 at 22:19

This question is unlikely to help any future visitors; it is only relevant to a small geographic area, a specific moment in time, or an extraordinarily narrow situation that is not generally applicable to the worldwide audience of the internet. For help making this question more broadly applicable, visit the help center.If this question can be reworded to fit the rules in the help center, please edit the question.

As the error says, did you install TeX Live (MacTeX)? – Joseph Wright Dec 29 '12 at 21:58
shouldn't usr/textbin/... be /usr/texbin/...? – Herbert Dec 29 '12 at 22:09
You state that you "installed MAC OS X 10.6.8 some weeks ago". Did you mean to say that you installed MacTeX on a Mac that's (still) running MacOSX 10.6.8? MacOS10.6 hasn't been sold by Apple in almost 2 years... Please also provide some information on what exactly you do when you "compile [a] .tex file". – Mico Dec 30 '12 at 0:26
This can sometimes be caused by a damaged preference file. Quit TeXShop and move the file ~/Library/Preferences/TeXShop.plist to the Desktop and then restart TeXShop. If that fixes the problem you can delete the moved .plist file and you'll need to reset any preferences you had previously set. – Alan Munn Dec 30 '12 at 4:20

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