[OS X TeX] Funny XeLaTeX Compile Problem with TeXShop

[Herbert Schulz]

On Oct 3, 2010, at 8:57 PM, Jeremy Conlin wrote:

> I am trying to learn XeLaTeX so I can use some system fonts.  I have a
> file (shown below) that I found on the intertubes.  This file
> compiles, but only the first time I try it in TeXShop.  If I make a
> change and try to recompile I get the message:
> 
> !
> ********************************************
> * XeTeX is required to compile this document.
> * Sorry!
> ********************************************.
> \RequireXeTeX ...********************************}
>                                                  \endgroup \fi
> l.26 \RequireXeTeX
> 
> ?
> 
> If I close TeXShop, then reopen, the file compiles just fine and the
> changes are shown in the document.  Does anyone know why this is
> happening?
> 
> I am using MacTeX 2010 on OS X 10.5.8.  I use TeXShop with an external
> editor if that makes any difference.
> 
> Thanks,
> Jeremy
> ...

Howdy,

At first glance it appears that it is not being compiled with xelatex but pdflatex the second time around. I don't see a problem with this when using the internal editor. What are your Editor settings; in particular TeXShop->Preferences->Source->On Startup?

Good Luck,

Herb Schulz
(herbs at wideopenwest dot com)