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this is my first question on here so I hope I'll include all necessary information right away.
I am running MiKTeX 2.9, set up for XeTeX; my Editor is TeXMaker and my OS is Windows 8, 64-bit.

Yesterday (Feb 13, 2013) I ran an update through MiKTeX's update wizard, as a consequence the miktex-runtime-bin-2.9 got updated which caused all sorts of trouble (mostly no package being detected anymore). I reinstalled MiKTeX except for the faulty, miktex-runtime-bin-2.9. All packages (at least all I use regularly) work fine, except for polyglossia.

A code example:

\documentclass[paper=a4, numbers=noendperiod, listof=numberedtotoc]{scrreprt}
\pagestyle{headings}
\usepackage{xltxtra}
\usepackage{polyglossia}
\setdefaultlanguage{german}
\begin{document}
Test
\end{document}

An output is produced, but with the following error messages:

! Missing number, treated as zero.
<to be read again>  \l@german 
l.7 \select@language {german}
A number should have been here; I inserted `0'.

! Missing number, treated as zero.
<to be read again>  \l@german 
l.22 \begin{document}
A number should have been here; I inserted `0'.

Package polyglossia Warning: You asked for `ngerman' but only
`german' hyphenation is available! on input line 48.

As a result, the hyphenation does not work anymore, especially not in the references (not for the code I put in the example; that's just a short version to show which packages I use).

Polyglossia was working fine before I updated miktex-runtime-bin-2.9, therefore I have no idea why these errors are issued, also because I properly set the default languages.
I consulted the Polyglossia documentary and also checked for a similar question, if it was asked somewhere else; however I could not find a working answer, especially because the issue is quite recent. I should also note, that the same code with the same versions of MiKTeX and Polyglossia is working without problems on my other computer.

I hope this was not too long of a read. If you require more information, feel free to ask.

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There seems to be quite a number of messages around the net about the last update to MiKTeX corrupting the list of preloaded languages. The reference to ngerman is quite strange, however. –  egreg Feb 14 '13 at 22:23
    
Welcome to TeX.sx! It looks like you did most of the work towards a good MWE, but I would assume many of the packages you’re using have nothing to do with the problem. Please have a look at my advice here and simplify your code (you can edit the question): I've just been asked to write a minimal example, what is that? –  doncherry Feb 14 '13 at 22:59
    
Okay, I just trimmed down the example a little bit. @egreg Especially that mentioning of ngerman completely puzzles me. Maybe I'll just have to wait for a fix to miktex-runtime-bin-2.9; hopefully that'll straighten up polyglossia as well. –  lueggi Feb 14 '13 at 23:18
    
You may be able to find something at the MiKTeX mailing list: sourceforge.net/mailarchive/forum.php?forum_name=miktex-users –  egreg Feb 14 '13 at 23:18
2  
The warning is imho a bug in polyglossia: It inadvertendly defines \l@german to \relax (problably due to an \csname...\endcsname) and so a test ends in the wrong branch. The main problem is that the hyphenation patterns are not in the format - and this is perhaps due to a broken local language.ini. –  Ulrike Fischer Feb 15 '13 at 8:50
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closed as too localized by Speravir, Guido, Thorsten, Marco Daniel, lockstep Mar 24 '13 at 8:50

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1 Answer

With an update in similar dates, using MikTeX 2.9, I discovered that all the languages were gone. It was imposible to download all the languages and rebuild the index file. Therefore I restored from a back up.

Discovered that some downloaded files get a 'protected' status, and probably that is causing the failure.

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