I have Master/Slave setup using Win2k8R with SVN 1.6.9 and using TortoiseSVN 1.6.7. The access is through Apache and using http. Everything works but when I commit I get the following message: Error: post-commit hook failed (exit code 1) with output:
Error: The process cannot access the file because it is being used by another process. This happen when using multiple TortoiseSVN dialog for committing the files in rapid succession. If I use one TortoiseSVN dialog and wait till the commit reply is back then I won't see the problem. In other words, committing one at the time cause no issue. The post-commit script output is logged.

Even though I get the above error but when I check the Master and Slave repository the files have been replicated okay with no issue.

I am wondering how this issue can be solved.