We had some problems checking out a subversion repository containing a 6.x version of Drupal and its Frontpage Slideshow Plugin on Windows. On Linux, everything works fine.

Error   Can't open file 
Error   ... htdocs\main\sites\all\modules\fpss\fpss\.svn\tmp\text-base\readme.txt.svn-base 
Error   Das System kann die angegebene Datei nicht finden 
Error   No such file or directory 

Yes, we have a “README.TXT” and a “readme.txt” in that same directory (it was our fault!) and checking out on windows! So:

... htdocs/main/sites/all/modules/fpss/fpss$ svn mv README.TXT readme_drupal.txt 
... htdocs/main/sites/all/modules/fpss/fpss$ svn commit 

See also:

• http://svn.haxx.se/users/archive-2009-02/0084.shtml
• http://subversion.apache.org/faq.html#case-change