[OS X TeX] broken tex distribution

[Felix Grasser]

I have the exact same issue.

I have been working with TeXLive2008 and TeXShop 2.26 and everything  
has been working flawlessly.

Yesterday, I upgraded to TeXShop 2.28 (part of the MacTeX 2009 test  
release) and renamed the TeXShop folder in ~Library to TeXShopOld so  
TeXShop would install all the latest engines, templates, etc. After  
this generation of the default TeXShop folder in ~Library, I get the  
error described by Shawn.

Putting the old TeXShop folder back in ~Library has cured the issue. I  
have not yet been able to track down what exactly caused the problem.

Felix




On 10.08.2009, at 06:34, Shawn Allgeier wrote:

> My TeXshop stopped working.  When I try to compile I receive the  
> following message:
> -----
> Can't find required tool
> (null) 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.
> -----
> I tried deleting my old distribution (2007) and upgrading to 2008  
> since it was time.  I still receive the same message.  Is something  
> configured incorrectly between the front and back ends?
>
> -Shawn
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