I can manually update individual projects using CollabNet or Tortoise no problem.
But my ant script (executed from Hudson) containing
<svn javahl="false" svnkit="false" username="${svn.username}" password="${svn.password}">
<update dir="${dest.path}/@{project}" />
</svn>
fails with
[svn] svn: 'C:\Hudson-slave\xxxxx\yyyyy' is not a working copy
[svn] svn: Cannot read from 'C:\Hudson-slave\xxxxx\yyyyy.svn\format': C:\Hudson-slave\xxxxx\yyyyy.svn\format (The system cannot find the file specified)
[svn] failed !
Could ant be using and older version of svn? How can I check which version it's using?