I used to use SVN 1.4 on OS X Leopard and everything was fine. A couple of weeks ago I installed a fresh copy of OS X 10.6. The version of SVN that comes with Snow Leopard is 1.6.5. I went ahead and built my own copy with 1.6.6. I'm using the built in apache server and just hosting repositories locally.

Everything appeared to work fine until I actually tried to commit something. Everytime I try to commit a change, I get the following message:

Transmitting file data .svn: Commit failed (details follow):
svn: MERGE of '/svn/svn2': 409 Conflict (http://localhost)

This happens with my old repositories, so I created a couple of new ones. Same deal. I also tried using the 1.6.5 version that comes with the system...same. Finally, I tried upgrading to the latest stable SVN (1.6.9) and still got the same problem.

The Apache error logs the following for each failed commit:

[Mon Mar 29 19:53:10 2010] [error] [client ::1] Could not MERGE resource "/svn/svn2/!svn/act/d399326f-c20f-424f-bb68-3bb40503b5b1" into "/svn/svn2".  [409, #0]
[Mon Mar 29 19:53:10 2010] [error] [client ::1] An error occurred while committing the transaction.  [409, #2]
[Mon Mar 29 19:53:10 2010] [error] [client ::1] Can't open directory '/usr/local/svn/svn2/db/transactions/5-6.txn/\xeb\xa9\x0f\x1f': No such file or directory  [409, #2]
[Mon Mar 29 19:53:11 2010] [error] [client ::1] Could not DELETE /svn/svn2/!svn/act/d399326f-c20f-424f-bb68-3bb40503b5b1.  [500, #0]
[Mon Mar 29 19:53:11 2010] [error] [client ::1] could not open transaction.  [500, #2]
[Mon Mar 29 19:53:11 2010] [error] [client ::1] Can't open file '/usr/local/svn/svn2/db/transactions/5-6.txn/props': No such file or directory  [500, #2]

And from the access log:

::1 - - [30/Mar/2010:13:02:20 -0400] "OPTIONS /svn/svn2 HTTP/1.1" 401 401
::1 - user [30/Mar/2010:13:02:20 -0400] "OPTIONS /svn/svn2 HTTP/1.1" 200 188
::1 - user [30/Mar/2010:13:02:20 -0400] "PROPFIND /svn/svn2 HTTP/1.1" 207 647
::1 - user [30/Mar/2010:13:02:20 -0400] "PROPFIND /svn/svn2 HTTP/1.1" 207 647
::1 - user [30/Mar/2010:13:02:20 -0400] "PROPFIND /svn/svn2/!svn/vcc/default HTTP/1.1" 207 398
::1 - user [30/Mar/2010:13:02:20 -0400] "PROPFIND /svn/svn2/!svn/bln/6 HTTP/1.1" 207 449
::1 - user [30/Mar/2010:13:02:20 -0400] "REPORT /svn/svn2/!svn/vcc/default HTTP/1.1" 200 1172

Curiously, the commit does actually commit the changes, but the working copy doesn't see that and everything gets screwy.

I've tried to Google every variation I can think of for this problem, but the search results are pretty much useless. I'm not using TortoiseSVN or anything special and commits fail on a new repository, so I know it's not a problem with my old repos.

Any help would be greatly appreciated.