SVN更新报the working copy needs to be upgraded解决办法

SVN更新原始项目报：

The working copy needs to be upgraded
svn: The working copy at 'E:\work\ronhe\MyEclipse10\workspace_ftp0806\VBM_ALM_V7.0'
is too old (format 29) to work with client version '1.9.3 (r1718519)' (expects format 31). You need to upgrade the working copy first.

原因是新的环境的svn版本比原始检出版本高。

解决办法两个：

1、重新检出项目。

2、升级项目选中项目—>右键—>Team—>Upgrade；完成后重新更新即可。