Subversion同步工具svnsync出错:Failed to get lock on destination repos
Subversion同步工具svnsync出错:Failed to get lock on destination repos
在Subversion版本库同步工具:svnsync一文中提到了Subversion提供的同步工具svnsync，然而在使用svnsync同步两个版本库时经常出现如下的错误，并自动中断了同步操作：

Copied properties for revision 461.
svnsync: Server sent unexpected return value (502 Bad Gateway) in response to PR
OPFIND request for ‘/svn/!svn/vcc/default’

当再次运行 svnsync sync svn://localhost/jqueryjs 时，有可能出现“Failed to get lock on destination repos”的错误信息，使同步操作无法继续进行：

F:\Subversion>svnsync sync svn://localhost/jqueryjs
Failed to get lock on destination repos, currently held by ‘firehack:963c0909-45ad-644f-b383-7e35d445028f’
……
Failed to get lock on destination repos, currently held by ‘firehack:963c0909-45ad-644f-b383-7e35d445028f’
svnsync: Couldn’t get lock on destination repos after 10 attempts

解决办法：在备份仓库 执行：删除SVN仓库修订号0  svn:sync-lock的保护.svn propdel svn:sync-lock --revprop -r 0 http://some.domain.com/svn/projects