svn: In directory '.'
svn: Can't open file '.svn\tmp\text-base\qt_temp.N19845.svn-base': The system ca
nnot find the file specified.
Fortunately the solution is quite simple, first access the working copy through Linux/Mac and remove from the repository the file that is causing the problem with the following command:
svn delete --keep-local the_file
Then commit your changes:
svn ci
Now go to your Windows XP system and everything should be working.