解决svn: Errors found while detecting svn working copies.

报错：

svn: E155036: Please see the 'svn upgrade' command svn:E155036: 
The working copy at '/Users/test/IdeaProjects/test'is too old 
(format 10) to work with client version '1.9.7(r1800392)' 
(expects format 31). You need to upgrade theworking copy first.

原因：
工程目录的svn版本比本机安装的svn版本低

解决：

command+space -> ter -> enter
#svn --version  --查看当前系统的svn版本
#cd /Users/test/IdeaProjects/test  --进入工程目录
#sudo svn upgrade

效果如下：

image.png

执行如下步骤即可正常使用：

image.png