错误信息：
The working copy needs to be upgraded
svn: The working copy at ‘F:\JAVA Project\PAW-VRVEIS-JJ-2.0\WebContent\WEB-INF\pages\applicationAddressAction‘
is too old (format 10) to work with client version ‘1.8.14 (r1692801)‘ (expects format 31). You need to upgrade the working copy first.
我出现这个问题的原因是：我在把一个其他项目中的一个文件夹复制本项目中进行使用
最后发现这里有个svn
解决方法是把这个文件夹删除了，再加入到本项目
The working copy needs to be upgraded svn: The working copy at
原文：http://www.cnblogs.com/liaojie970/p/4878154.html