在eclipse中，有一个拷贝过来的代码文件夹需要上传到svn上，但是在提交的时候报
add -N D:\xxxxxx\work\action
The working copy needs to be upgraded
svn: Working copy 'D:\xxxxxx\work\action' is too old (format 8, created by Subversion 1.4)
后来去翻阅资料的时候让我去Upgrade整个工程，但是在Upgrade工程时候又报
upgrade D:/workspace/yyyy
Invalid operation on the current working directory
svn: Can't upgrade 'D:/workspace/yyyy' as it is not a pre-1.7 working copy directory
Can't find an entry
svn: Missing default entry
请问各位大神该如何解决这个问题，找了很久百度还是没找到解决的办法
